Una planta de flores púrpura se cruza con una planta de flores blancas, obteniéndose una descendencia en la segunda generación filial de 50 % heterocigotas, 25% homocigotas dominantes y 25% homocigotas recesivas. (el color púrpura domina sobre el blanco) Diga: ¿Qué genotipos y fenotipos tienen los padres para que se cumpla esta proporción en la segunda generación? ¿A qué la ley que corresponde? ¿Por qué los padres presentan ese genotipo y cuál es el fenotipo que expresan la segunda generación filial? Explique. Demuestre con cruces

Answers

Answer 1

Answer:

Los padres son homocigotas y la F1 estará formada por individuos heterocigotas

Explanation:

El cruzamiento entre un ejemplar homocigota dominante P (flores púrpura) y un homocigota recesivo p (flores blancas) para un rasgo determinado por un sólo un gen con dominancia completa producirá una generación filial F1 100% heterocigota. Por su parte, cuando cuando estos individuios cuyo genotipo es Pp se cruzan entre sí, los genotipos esperados en la F2 serán 1 (PP, homocigota dominante): 2 (Pp, heterocigota): 1 (pp, homocigota recesivo). Esta aserción corresponde a la segunda ley de Mendel, la cual es conocida como la Ley de Segregación Independiente.


Related Questions

-gene 1
-gene 2
-gene 3
How are these three genes related?

Answers

Answer:

Depends on the locations of these gene segment on the chromosome whether it be found on the same or different.

It can either be linked or unlinked.


1. If the temperature of the water increases from 5°C to 10°C, the goldfish in Population 1 would most likely

Answers

Answer:

hot water make it hard for fish to breathe

Explanation:

an increase in temperature of water will  reduced the dissolved oxygen in water and increase the metabolic rate of goldfish thus causing goldfish respiration rate

How do the leaves help trees survive in their respective biomes? A. The temperate leaves are broad and flat to maximize sunlight absorption, while the taiga leaves are long and thin to minimize sunlight absorption. B. The temperate leaves are thin to minimize absorption of sunlight, while the taiga leaves are specialized to store water during the dry season. C. The temperate leaves shed water during the wet season, while the taiga leaves can enter long periods of dormancy during colder weather. D. The temperate leaves grow in the spring and shed in the cold, while the taiga leaves are dark and wax-coated to prevent the tree from freezing.

Answers

Answer:

The correct answer is option D.

Explanation:

The temperate leaves grow in temperate forests found in America, Europe, and Asia. This biome comprise of trees have evergreen conifers with needle like leaves. Such leaves can endure wide change of temperature and light. Some vegetation of temperate biome are conifers such as Pine, Hemlock and other. The trees shed their leaves with the beginning of fall and new leaves are delivered in late-winter  to protect from the cold.

On other hand, Taiga forest is the biggest biome on the planet. This biome contain conifers with long, slender waxy needles like leaves. These waxy leaves provide security against freezing temperature and from dying drying out. In contrast to temperate they don't sheds their leaves in winter and keep their needles throughout the entire year.

Thus, the correct answer is option D.

Answer:

D. The temperate leaves grow in the spring and shed in the cold, while the taiga leaves are dark and wax-coated to prevent the tree from freezing

Explanation:

Got it right on Edmentum

Muscle cell are richer in lysosomes , as they require lot of energy. correct and rewrite the following statement.

Answers

Answer:

See below

Explanation:

The correct statement is:

=> Muscle cells are richer in mitochondria, as they required lots of energy.

Mitochondrion acts as power house of the cell providing the cell with the required energy.

Correct Statement:-

Muscle cells are richer in Mitochondria, as they require a lot of energy.

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Especially in Skeletal muscles, Mitochondria and glycogen granules are found in abundance. Our limbs that includes our arms and legs shows movement which needs energy. The food is oxidized and energy is released.

More to know:-Mitochondria is popularly known as Power house of the cell or ATP generation site.It is a double-membranous structure with outer membrane smooth and inner membrane surrounds the matrix.The inner membrane have cristae which increase surface area.The cristae bear Oxysomes or F0-F1 particles.Mitocondria is semi-autonomous, it have it's own DNA and ribosomes.

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1. ____Bacteria are the only microorganisms used in the fermentation process 2. ____Fermentation can be used only to make dairy products 3. ____Starter cultures are used to initiate the process of fermentation in modern day food processing 4. ____Fermentation occurs when undesirable metabolic reactions allow for the growth of pathogens or the presence of unwanted microorganisms in food

Answers

Please sort the following statements as being true or false regarding fermentation and its role in food production. Please recall the role that microorganisms can play in the production of foods.

Answer:

1.  False statement

2.  False statement

3.  True statement

4.  False statement

Explanation:

1. Yeast is a microorganism which is also used in fermentation process.

2. Fermentation can however be used for various reasons, including: development of flavours, preservation and enrichment of foods, reduction of food cooking time etc.

3. Starter culture is considered to be a form of microbiological process which is used to initiate a process of fermentation.

4. Fermentation is considered to be a desired action of microorganisms

Statement that Bacteria are regarded as only microorganisms utilized in fermentation process is False

Statement that Fermentation is considered only when making dairy products is False.

Statement that Starter cultures can be utilized when initiating the fermentation process in food processing in this age is True.

Statement that Fermentation takes place when growth of pathogens or unwanted microorganisms in food are allowed by undesirable metabolic reactions is False.

Fermentation can be regarded as metabolic process whereby  organism converts a carbohydrate into alcohol or an acid.

This process is used in making dairy products, one of the organisms that can be used in fermentation is yeast.

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Which statements accurately describe the roles of water on earth

Answers

Answer:

C.

Explanation:

It carries cold water from the equator to the poles

Question What was the ratio of tall to short plants in the F2 generation of Mendel's experiments? A. 3:1 B. 2:1 O C. 1:1 D. 6:1 ​

Answers

Answer:

A

Explanation:

Answer: 3:1

Explanation:

i got it right on the test

Three living species X, Y, and Z share a common ancestor T, as do extinct species U and V. A grouping that consists of species T, X, Y, and Z (but not U or V) makes up Three living species X, Y, and Z share a common ancestor T, as do extinct species U and V. A grouping that consists of species T, X, Y, and Z (but not U or V) makes up a polyphyletic group. an ingroup, with species U as the outgroup. a paraphyletic group. a monophyletic clade. a valid taxon.

Answers

Answer:

Explanation:

Creative Bioarray has developed and validated the 3T3 neutral red uptake photoxicity assay, erythrocyte hemolysis assay and a phototoxicity screening assay using 3D human epidermis model.

https://dda.creative-bioarray.com/pharmacology-models.html

Which function is specific to the neuron? It generates electrochemical signals so that the body can react to stimuli. It produces antibodies to destroy pathogens for protection purposes. It breaks down chemical substances into a form that is usable by the body. It delivers oxygen to the cells of the body for metabolic processes.

Answers

Answer:

It generates electrochemical signals so that the body can react to stimuli.

Explanation:

This is the job of the nervous system; it allows our body to react to stimuli. Neurons are what allows us to feel if something is touching our body (or if we are touching something) by sending synapses all the way to the brain at an incredibly fast pace.

Answer:

It generates electrochemical signals so that the body can react to stimuli.

Explanation:

edge 2022

Consider this animal cell. The organelles in an animal cell are labeled. Part E represents small dots on the nucleolus. What is the function of the small, dark organelles labeled E? They contain enzymes for the digestion of old cell parts. They regulate what enters and leaves the cell. They produce proteins for the cell. They store water and other materials.

Answers

The dark organelles labelled E is called the Ribosomes.    

The answer is Ribosomes

Evaluate this statement: Gene flow increases the genetic divergence of populations. Evaluate this statement: Gene flow increases the genetic divergence of populations. This statement is true. This statement is false. Gene flow is not able to influence the genetic divergence of populations. This statement is false. Gene flow reduces the divergence of populations. This statement is false. Gene flow increases the number of genes in populations.

Answers

The correct answer is C. This statement is false. Gene flow reduces the divergence of populations.

Explanation:

In biology and related areas, genetic divergence occurs if populations with a common ancestor develop unique traits, which are the result of genetic changes over time. On the other hand, gene flow occurs when traits including genes flow from one population to another, usually because the populations are in contact. In this context, gene flow reduces divergence because if genetic material flows between populations is less likely each population can develop unique traits, instead the populations involved will have similar traits after some time.

The correct answer is C. This statement is false. Gene flow reduces the divergence of populations.

The following information should be considered;

In terms of biology and related areas, genetic divergence arise at the time when the populations are with a common ancestor that created unique traits, due to this there are genetic changes over time. While gene flow arise at the time when traits involved genes flow from one population to another, normally due to the populations are in contact. In this given situaton, gene flow reduces divergence since genetic material flows between populations is less likely every population can create unique traits, rather the populations involved will have similar traits.

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13. List 4 safety symbols that would be seen if you are working with a material that is biohazard, such as bacteria.

Answers

Answer:

1. Skull and crossbones

2. A triangle (commonly painted colour red or yellow) with an exclamation sign inside.

3. biohazard symbol

4. A radiation sign in the form of a triangle, having other little image descriptions inside.

Explanation:

Note that a biohazard material refers to dangerous substances of biological (living) nature that can pose a threat to humans. Thus, safety symbols try as much as to draw attention to the descriptions used.

For example, skull and crossbones and biohazard symbols are used to indicate that a material that is biohazard, such as bacteria could result in the death of a person.

Does human have link with their genes(from their family)?

Answers

Answer:

Yes genes are the features of either the mother of father

Explanation:

Yes genes are features of other parents genes

Drag each label to the correct location. Classify the interactions as being direct or indirect competition. Two eagles fight over a salmon carcass. All the gray foxes in a habitat prey primarily on penguins. Two colonies of black ants clash over a wasp. Gray squirrels in an area rely on nuts for food.

Answers

Answer:

Two eagles fight over a salmon carcass- DIRECT

All the gray foxes in a habitat prey primarily on penguins- INDIRECT

Two colonies of black ants clash over a wasp- DIRECT

Gray squirrels in an area rely on nuts for food- INDIRECT

Explanation:

Living organisms of same or different species tend to interact with one another in their natural habitat. One of those interactions is competition, which occurs when living organisms share the same limited resources or occupy the same niche in their habitat.

However, competitive interaction between organisms can either be direct or indirect. Direct interaction is that which involves a physical interaction between the organisms i.e. a confrontation. A struggling for the limited resource is evident. For example, two eagles fighting over a salmon carcass and two colonies of black ants clashing over a wasp shows the form of physical confrontation for the limited resource between the organisms involved. Hence, they are examples of direct competition.

On the other hand, indirect competition involves the competition for a limited resource without a physical confrontation or struggle. Organisms make use of the limited resource until it becomes unavailable to competitors. For example, gray foxes in a habitat that prey primarily on penguins and gray squirrels in an area relying on nuts for food shows a competition for a scarce resource without any physical interaction between them. Hence, they are examples of indirect competition.

Which of the following is a testable hypothesis?
a. Roses are more beautiful than violets.
b. A plant needs at least five hours of sunlight per day to grow.
c. I've cream is delicious.
d. Humans will someday land on Mars.

Answers

Answer:

D. Humans will someday be on mars

nope, the only one you can test would be B, because the others are opinions or something in the future

What has a greater influence on protein levels?

Answers

Answer:

B : mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced.

Explanation:

Can someone describe these:
Menstrual Phase
Follicular Phase
and Luteal phase

Thanks!!!

Answers

Answer:

(menstrual phase) this is the phase where the unfertilized ovum and endometrium that was formed in readiness for implantation slough off or come out due to a sudden drop in progesterone levels

(follicular phase) this is where the graafian follicle in the ovary develops. from primary follicles due to secretion of follicle stimulating hormone by the pituitary gland and matures there after due LH hormone which will also stimulate the ovary to release the ovum

(luteal phase)this is the phase after the ovum has been released where the remains of the ruptured graafian follicle undergo reorganization to form a corpus luteum/yellow body which now produces progesterone which causes thickening of endometrium in readiness for implantation

hope this helps

Answer:

The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible. 2) The follicular phase is a phase of the estrous cycle during which follicles in the ovary nature from primary to a fully mature grafian follicle.It ends with ovulation.3) The luteal phase begins during the second half of a menstrual cycle normally lasting around 12 14 days after the ovulation and it is responsible for producing progesterone.

After school, Kai feels hungry and tired. He finds some sugar cookies in the cabinet and finishes the whole package.
Which statements best describe the role of glucagon and insulin in this scenario?
O Glucagon was secreted by his pancreas before he ate the cookies because his blood glucose was low. Insulin
was secreted after he ate the cookies because his blood glucose was high.
O Insulin was secreted by his pancreas before he ate the cookies because his blood glucose was low. Glucagon
was secreted after he ate the cookies because his blood glucose was high.
O Glucagon was secreted by his pancreas before he ate the cookies because his blood glucose was low. After he
ate, insulin from the cookies increased his blood sugar levels.
O Insulin was secreted by his pancreas before he ate the cookies because his blood glucose was low. After he ate,
glucagon from the cookies increased his blood sugar levels.

Answers

Answer: Option A) Glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. Insulin was secreted after he ate the cookies because his blood glucose was high.

Explanation:When Kai was hungry and his blood glucose level was decreasing, glucagon is the hormone which was secreted by the islets of pancreas to increase the blood sugar levels in his body. Glucagon forces the liver to release the stored glucose in it, which increases the blood glucose level in the body. When Kai ate the sugar cookies there was enough of blood glucose available for his body, also it exceeded the requirement and went high. Insulin was then secreted to control this excess glucose from the islets of pancreas. As it helps the body cells to absorb the glucose and lowers the amount of glucose in the blood. It makes the cell available with the glucose to produce energy and perform their activities.

In short, glucagon and insulin both are secreted by the same organ which is islets of pancreas. But they differ in their function, glucagon increases the blood glucose when the body needs it, whereas insulin helps to absorb the excessive glucose and stores that in the body. Both are the hormones which help in regulating the body glucose levels.

During  process of digestion which takes place in digestive tract statement which describes role of glucagon and insulin is glucagon was secreted by  pancreas before he ate the cookies because his blood glucose was low. Insulin was secreted after he ate cookies because his blood glucose was high.

What is digestive tract?

It consists of the gastrointestinal tract along with the accessory organs which are present in digestion process . It involves the breakdown of complex food into smaller components which can be easily assimilated and absorbed by the body.

The digestion process has 3 phases: cephalic phase , gastric phase and intestinal phase.Cephalic phase begins with secretion of gastric juices from gastric glands in response to sight and smell of food.It involves chewing and chemical breakdown of food by the action of digestive enzymes ,saliva in the mouth contain enzymes like lipase and amylase which are secreted by the salivary and serous glands present on the tongue.

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a pupil performed an experiment in a school lab to show the action of a digestive enzyme on a food substance

a) Name and enzyme suitable for such an experiment
b) Name a food substance on which the enzyme that you have named will act
c) Describe any preparation of the food required before the experiment is performed. If no preparation is required state why?
d) give the temperature at which the enzyme-food mix should be maintained for the experiment to work
e) how much time is needed for digestion of food in this experiment?
f) describe a test to confirm that digestion has occurred ​

Answers

I prefer d as the correct answer!!!

what mode of nutrition is house fly​

Answers

Answer:

Houseflies do not have chewing mouthparts like a cockroach or piercing-sucking mouthparts like a mosquito. They regurgitate digestive enzymes, soften and liquify the food material, and then they sop it up with their sponging mouthparts.

Hope this makes sense and helps

What is most similar about the alkaline earth metals?

Answers

Answer:

They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure

Is there just one universal scientific method?

Answers

Answer:

There is no such unique standard method—scientific progress requires many methods—but students in introductory science courses are taught that `The Scientific Method' is a straightforward procedure, involving testing hypotheses derived from theories in order to test those theories.

Explanation:

When human skin suffers a cut, the process of healing rapidly begins allowing for wound closure and healing within a few days. Keloids occur when skin around wounds continues to grow after the skin has healed. A disruption in the regulation of which cellular process is probably responsible for this condition

Answers

Options

A. Mitosis

B. Meiosis

C. Apoptosis

D. Phagocytosis

Answer:

A

Explanation:

Mitosis is a type of cell division which takes place in living  organism during growth and development.Therefore it is ensures  the regenerations of cells and tissues during healing.

Therefore the restoration of new cells to the skin following injuries is due to mitosis.Since this is a multiplication division(2n) in which the daughter cells are exactly like the parents' cells the new tissues of the skin by mitosis, look exactly like the previous one that was injured.

In cases where the mitotic growth control is lost, the scare tissues of the injured part overgrows with granulation tissues and this leads to Kaloids.

      Its is a mass of Collagen Type 1.(Collagen is an  fibrous proteins  which has largest proportion in mammals).

Keloids  is characterized with pink or red coloration and elevation of the area,excessive growth of the area, with irritating  patch skin

In the database, Academic Search Complete (Links to an external site.), search for the article "Brevetoxicosis: Red Tides and Marine Mammal Mortalities" by Flewelling et al. If you wanted to explore more of the scholarly conversation by taking advantage of "citation chaining" what links could you click on to help with this task

Answers

Answer: The link I would be clicking on with this task is Molecular detection of the brevetoxin-producing dinoflagellate Karenia brevis and closely related species using rRNA-targeted probes and a semiautomated sandwich hybridization assay. Therefore, the task will be accomplished having done this.

Write TRUE or FALSE
(a)
A 'system' is the part of an organism that carries out a certain function.​

Answers

Answer:

TRUE

Explanation:

What are intermediate species? in an easy way to understand. And some examples?

Answers

Answer:

An intermediate is a species which appears in the mechanism of a reaction, but not in the overall balanced equation. Examples: Amphibian/land vertebrate (Pederpes)- Intermediate form between primary aquatic Upper Devonian amphibians and early tetrapods. Lizard/snake (Pachyrhachis)—Intermediate form of snakes and an extinct lizard-like reptile. It was a primitive snake with limbs.

Explanation:

Answer: These are certain species that create “connecting links” or something like that, between the fossil record of life which help to show the slow process of speciatin.

[speciatin- the formation of new and distinct species in the course of evolution.]

Hope this helped! <3

what are the methods used in biodegrable waste managment? plz amswer i will give brainliest if u answer im using my last points​

Answers

Answer:

The different types of waste are urban, industrial, agricultural, biomedical, and radioactive wastes.

Methods used within biodegradable waste management are composting, landfilling, incineration, recycling and plasma gasification.

Explanation:

Answer:

Composting. Since biodegradable or organic wastes like vegetable peels, waste food, leaves, dead flowers, and egg shells can be recycled, they are converted into manure by burying them in compost pits.

Explanation:

PLEASE ANSWER ASAP!!!!!!!! ITS DUE IN 5 MINUTES.

1.) How do organisms benefit from Mitosis? Write a paragraph using at least five sentences.


Answers

Answer:

Organisms benefit from mitosis because mitosis helps regenerate cells. This helps them recover from injuries and more.

Explanation:

The hypothalamic hormone that triggers the secretion of FSH and LH from the anterior pituitary is

Answers

Answer:

Hypothalamic-Pituitary-Gonadal Axis

GnRH produced by the hypothalamus stimulates the production of both LH and FSH. FSH functions by stimulating ovarian follicular development in females and regulating spermatogenesis in males. LH induces ovulation and corpus luteum formation in the ovaries.

plz give brainlist

hope this helped

How are the proteins inside your body affected by the presence of water and other molecules?

Answers

Answer:

Our body is constitute of several essential molecules such as proteins, fat, carbohydrate, water, and other molecules.

Each molecule has some of the impact of other molecules in the body. Impact of water and other molecules on proteins inside the body are as follows:

Proteins have ligand-binding site and water provide stability to the ligand-binding site of proteins through its hydrogen bonds.Conformational flexibility and transitions of proteins are due to the presence of water molecules in it.Disbalance in the pH of body due to changing concentration of sodium-potassium ions can denature the protein. Enzymes present in the body can control the rate of formation of proteins in the body.

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Use your own language to explain that short run supply curve by a price-taking firm is the positively-sloped portion of the short-run marginal cost curve. Find mPR(arc). A. 115 B. 95 C. 125 D. 100 Please help! Im this figure, which angles are congruent? Find the measure of all the angles if m< 2= 76 degrees The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the ring structure of the ______ bases are synthesized separately and then coupled to ribose-5-phosphate via the C-N glycosidic bond. What is the length of the shortest altitude in a triangle, if the lengths of the sides are 24 cm, 25 cm, 7 cm? Half-cells were made from a nickel rod dipping in nickel sulfate solution and a copper rod dipping in copper sulfate solution. The cells were combined to construct a voltaic electrochemical cell. Sketch the cell and label anode and cathode with charges, electrode material and electrolyte solutions, half-reactions and overall reaction, give direction of electron flow and movement of ions. The body paint, an automobile body paint shop, has determined that the painting time of automobiles is uniformly distributed and that the required time ranges between 45 minutes to 11/2hours.What is the probability that the painting time will be less than or equal to an hour?What is the probability that the painting time will be more than 50 minutes?Determine the expected painting time and its standard deviation. Can some one tell me who this is What two times could this be on the 24-hour clock? help me plz can somewon help me It is January 2nd and senior management of Digby meets to determine their investment plan for the year. They decide to fully fund a plant and equipment purchase by issuing $10,000,000 in bonds. Assume the bonds are issued at face value and leverage changes to 2.7. Which of the following statements are true? Select all that apply.a. Working capital will remain the same at $18,964,118b.Total Assets will rise to $235,535,291c. Chesters' long-term debt will rise by $9,000,000d.The total investment for Chester will be $217,192,866e.Total liabilities will be $139,957,573 In the Zechariah third vision he saw a man with a measuring rod, surveying Jerusalem in preparation for the rebuilding of its walls.a. Trueb. False Consider the effects of uncooked food. How can this exemplify an interrela-tion between health, safety, and nutrition? We can calculate E, the amount of euros that has the same value as D U.S. dollars, using the equation e=17/20d. How many U.S. dollars have the same value as 1 euro? In Spanish, what endings do we add to verbs to say that someone is doingsomething right now?O A. -ando and -lendoOB. -menteO C. -ando and -endoO D. condo and -iendo Herman Company has three products in its ending inventory. Specific per unit data at the end of the year for each of the products are as follows: Product 1 Product 2 Product 3 Cost $ 26 $ 96 $ 56 Selling price 58 138 88 Costs to sell 6 52 16 Required: What unit values should Herman use for each of its products when applying the lower of cost or net realizable value (LCNRV) rule to ending inventory? 2. (1 pt) The following statement is true or false;When we know the population standard deviation, o, we use a standard normaldistribution (z-score) to calculate the error bound EBM and construct theconfidence interval and when the population standard deviation, o, is unknown,we use a Student's t distribution (t-score) to calculate the error bound EBM andconstruct the confidence interval.a. trueb. false What would be the most likely result of the development of a new subdivision in a remote area with no utility services provided by the county or nearby cities? You find a zero coupon bond with a par value of $10,000 and 14 years to maturity. The yield to maturity on this bond is 5.1 percent. Assume semiannual compounding periods. What is the price of the bond find the product 538 x 100=