How do you explain Meiosis?

Answers

Answer 1

Answer:

Chromosome pairs with its corresponding homologous chromosome to form a tetrad.


Related Questions


Please select the correct chorological order for the following events:
A. Treaty of New Echota, Black Hawk War Ends, Black Hawk War Ends
B. Black Hawk War Ends, Treaty of New Echota, Treaty of Fort Laramie
C. Treaty of Fort Laramie, Black Hawk War Ends, Treaty of New Echota
D. Treaty of New Echota, Treaty of Fort Laramie, Black Hawk War Ends
Reset Selection

Answers

Answer:

C treaty of fort laramie, black hawk war end, treaty of new echota

What are the following is considered a receptive a fine touch

Answers

Explanation:

This system is responsible for all the sensations we feel – cold, hot, smooth, rough, pressure, tickle, itch, pain, vibrations, and more. Within the somatosensory system,there are four main types of 1.receptorsme chanoreceptors, 2.thermoreceptors,3. pain receptors, and 4. proprioceptors.

Two organisms, AABBCCDDEE and aabbccddee, are mated to produce an F1 that is self-fertilized. If all of these genes are on the same chromosome, and there is no recombination, how many different genotypes will occur in the F2

Answers

Answer:

2 genotypes: AABBCCDDEE; aabbccddee

Explanation:

The law of segregation (also called Mendel's First Law) describes how genes on different chromosomes segregate into gametes independently of each other. Moreover, recombination (also known as crossing over) is the interchange of genetic material between non-sister chromatids during meiosis. In this case, the five genes are on the same chromosome (i.e., they are linked together and do not segregate) and there is no recombination, thereby they are inherited as a haplotype block to the next generation:

- Genotypes parental (P) lines: AABBCCDDEE; aabbccddee

- Cross P1: ABCDE X abcde

- Genotype F1: AaBbCcDdEe (100%)

- Gametes F1: ABCDE; abcde

- Genotypes F2: AABBCCDDEE; aabbccddee (ratio 1:1)

Help anyone please????!

Answers

1. Wavelength
2. Compression
3. Rarefractiom
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Match the type of evidence for evolution with the correct example

Answers

Vestigial structures: 1st box

Homologous structures: Last box

DNA sequence data: 2nd box

Analogous structures: 3rd box

Which of the following processes
describes a cell undergoing exocytosis?
A. cell eating
B. diffusion
C. removing water and waste
D. moving molecules along a concentration gradient

Answers

Answer:

C. removing water and waste

Explanation:

Exocytosis occurs when a cell produces substances for export, such as a protein, or when the cell is getting rid of a waste product or a toxin.

Hope this helps

Answer:

[tex]\boxed {\boxed {\sf C. \ Removing \ water \ and \ waste}}[/tex]

Explanation:

We are asked to find a description for a cell undergoing exocytosis. First, let's define the process.

Exocytosis is a type of active transport, so ATP or energy is required to initiate and complete the process.

This process moves substances from the inside of a cell to the outside. Molecules are packaged into vesicles. The vesicle moves to the cell membrane and attaches. The vesicle fuses with the membrane and the molecules inside the vesicle are released.

Essentially, substances are removed from the cell. This is especially useful because it can rid the cell of any waste or excess water. Therefore, the correct answer is choice C.

You learned in the previous lesson that T cells require two independent signals to become activated. When T cells are activated, they acquire effector functions and begin to proliferate. This two-signal mechanism prevents the expansion of self-reactive effector T cells. Similarly, B cell receptor signaling alone is not sufficient to activate B cells. B cells require assistance from helper T cells to become activated by monovalent protein antigens and gain certain immune functions. What changes do you suspect will occur to B cells when they are activated by protein antigen and receive T cell help? (select all that apply)
a) They will generate memory cells that can respond to a subsequent exposure to antigen.
b) Their immunoglobulin genes will be mutated in a way that alters antigen affinity.
c) The isotype of their immunoglobulin (Ig) genes will change.
d) They will proliferate and expand.
e) They will secrete antibodies.

Answers

Answer:

a. They will generate memory cells that can respond to subsequent exposure to antigen.

d. They will proliferate and expand

e. They will secrete anti bodies

Explanation:

B cells are type of white blood cells who belong to lymphocyte subtype. They are activated by binding of antigen to receptors on cells surface, against which they initiate and antibody response. Some of these cell proliferate and divide while other become long lived memory cells that respond subsequent exposure to antigen at later stage.

ASAP
A species of Coral snake has a red, yellow and black stripe pattern. One
gene controls if the stripes are thick or thin. Thin (T) is dominant over
thick (t). If two snakes heterozygous for this gene are crossed, what will
be the genotype(s) of their offspring? You may need to use a Punnett
square to answer the question.
Question Progress
OA. TT and Tt
B. TT, Tt, and tt
C. TT and tt
D. All Tt

Answers

B . , because I remember this

The genetic attributes of the organism are determined by the genotype. The cross of the heterozygous genes in Coral snakes results in offsprings with TT, Tt, and tt. Thus, option B is correct.

What are genes?

Genes are the functional and physical basis of the inheritance that passes from generation to offspring with various traits and attributes. The gene contains a recessive and a dominant allele.

Heterozygous genes are represented as Tt as it contains one dominant and one recessive allele. The cross between the two heterozygous (Tt) Coral snakes is attached to the image below.

From the cross, it can be seen that 75 % of the coral snakes have thin strips while the 25 % of the species have thick strips. The ratios are:

Genotype = 1 : 2 : 1

Phenotype = 1 : 3

Therefore, option b. the genotype(s) of the offspring will be TT, Tt, and tt.

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Which of the following choices is an example of an independent system

A: a human who needs food and water to survive

B: a plant that needs sunlight to make energy

C:a factory that recycles plastic bottles into reusable tote bags.

D:None of these choices are correct.

Answers

Answer:

B

Explanation:

Answer:

a palnt that need sunlight to make energy

what is full course meal?​

Answers

Answer:

Full course meals are made up of three courses: an appetizer, main dish, and dessert. Also known as a three-course meal or a standard course meal, you will sometimes see restaurants offering a full menu with these three items. You can add more courses to a full course meal.

Explanation:

Porque voy a estudiar nutrición y dietética?

Answers

Answer:

La carrera de nutrición y dietética forma profesionales altamente capacitados en el campo de la salud desde una perspectiva de la alimentación

Explanation:

La alimentación es un aspecto clave en la vida que se encuentra relacionado directamente con la cantidad y calidad de los alimentos que ingerimos, lo cual es fundamental para tener una vida saludable y desarrollar un estado de bienestar tanto físico como emocional. La carrera de nutrición y dietética pertenece al área de la salud y tiene como objetivo formar profesionales que se encuentren altamente especializados para el desarrollo de programas de alimentación adecuados, teniendo en cuenta las características intrínsecas de los grupos de alimentos, sus propiedades y los requerimientos personalizados para cada paciente. En consecuencia, los profesionales en nutrición y dietética desarrollan un conocimiento profundo acerca de cuales son los requerimientos en macronutrientes (proteínas, hidratos de carbono y lípidos) y micronutrientes (vitaminas y minerales) para cada individuo, esto con la finalidad de adaptar la alimentación de acuerdo a su edad, peso corporal, estatura, etc. Los profesionales en este campo poseen además conocimientos avanzados en biología humana, bioquímica, química orgánica, como así también desarrollan aptitudes en psicología y salubridad alimentaria.

The rate of capillary filtration and reabsorption are increased when......... .
A) the negative pressure of interstitial fluid is reduced
B) the pressure of oxygen available to tissues is decreased
C) intravenous pressure is increased

Answers

Answer:

Mechanisms of enhanced transcapillary filtration in response to elevations in arterial or venous pressure. Elevations in arterial (Pa) or venous (Pv) pressure increase capillary pressure, which favors enhanced capillary filtration (Jv).

option"c"

5. Which of the following professionals has the authority to prescribe medication and treatment?
A. Nurse practitioner
B. Clinical dietician
C. Nutritionist
D. Home health aide

Answers

Answer: A. Nurse practitioner

Explanation: Hope it helps

Answer:

A. Nurse practitioner

Explanation:

Have a great day!

According to the phenotypic characters of pneumococcus considered in Griffith's
experiment of transformation, which of the following statements are correct? Choose the
correct option (i) Presence of slime layer (ii) Presence of capsule (iii) Absence of capsule

Answers

Answer:

发发发 发斯蒂芬

Explanation:

Presence of capsule. Therefore, option (B) is correct.

What was Griffith's experiment?

Griffith's experiment of transformation is a landmark experiment in microbiology conducted in 1928 by British bacteriologist Frederick Griffith. The experiment aimed to determine the nature of the "transforming principle" responsible for transferring genetic material between bacteria.

Griffith used two strains of Streptococcus pneumoniae, one that was virulent and had a polysaccharide capsule (S strain) and another that was non-virulent and lacked the capsule (R strain). He found that when he injected mice with the heat-killed S strain and live R strain, the mice died, and live S strain was found in their blood. This suggested that the R strain had been transformed into the S strain, and the genetic material was responsible for the transformation.

Griffith's experiment provided the first evidence of bacterial transformation and paved the way for future research on the molecular basis of genetics.

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What were the three large, flightless birds with similar features found on different continents, Australia, Africa, and South America?

Answers

Answer:

Rhea from south america

Emu from Australia

ostrich in Africa

When considering proteins that help control the cell cycle:
Stimulating proteins are encoded by tumor suppressor genes and inhibitory proteins are encoded by
proto-oncogenes.
O True
O False

Answers

True


oncogene are mutated forms of pronto-oncogene and can lead to over stimulation of the cell cycle.


1) P53 is a inhibitory protein

What is a small structure within the cell that serves specialized functions?

Answers

Answer:

Organelles

Explanation:

Organelles are small,specialized structures found inside the cell which perform a specific task and help in the functioning of the cell.

what are the points included in women's rights ​

Answers

Answer:

Explanation:These later evolved into six general points of equality for women: political, occupational, moral, social, economic and legal.

Change of a liquid to a gas is ___________.

Answers

Answer:

Condensation. think about I, if you see fog on a lake or pond, that's condensation, if you see water droplets on the side of your cold beverage, that's condensation.

HELP ASAP I WILL GIVE BRAINLIST

An unknown solution has a pH of 7.1. Which of these chemicals is likely to increase the pH the most when added to the solution?

HF

KOH

NH3

HNO3

Answers

Answer:

It is most likely KOH

Explanation:

NH3 is classified as a weak base so I'd suspect that to be incorrect although it does have a higher pH

The chemical that is likely to increase the pH the most when added to the solution is KOH. The correct option is B.

What is pH?

pH is the scale for the measurement of acidity and the basicity of any solution. pH is a scale from 1 to 14. The lowest pH will be highly acidic and the highest pH will be the highest basic.

The lowest the pH, it will donate the highest hydronium ions, and with the highest pH, it will dissociate completely into the solution. KOH dissociates completely into ions.

KOH or potassium hydroxide is a strong base. When the base is added to a solution, it increases its basicity. So it will increase the pH of the solution. All others are acids that will lower the pH of the solution.

Thus, the correct option is B. KOH.

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Which of these is the best definition of sustainable development?
A. Development that makes sure buildings are strong enough to sustain large hurricanes and earthquakes
B. Development that's typical of underdeveloped nations that derive their products directly from nature
C. Development that's supported by public opinion
D. Development that ensures the protection of the environment in the long term

Answers

Answer:

option D

Explanation:

is the correct answer

Development which basically ensures the protection of the environment in the long term is sustainable development. The correct option is D.

What is sustainable development?

Sustainable development is defined as growth that fulfills the requirements of the moment without jeopardizing future generations' capacity to meet their own needs.

The financial, social, and environmental measurements of sustainable development are examined.

The authors contend that material-intensive conventional productivity recovery is unsustainable in the long term unless environmental and social factors are prioritized equally.

Environmental protection aims to preserve as well as restore a healthy natural environment.

Sustainable development incorporates ecologic, social, and economic goals in order to achieve long-term equitable growth that benefits both the present and the future.

Thus, the correct option is D.

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Heart is to pump blood as stomach is to​

Answers

Answer:

hcl is present to clean other harmful acids

what is psychasthenia? Please don't copy and paste from g,o,o,g,l,e.

Answers

Answer:

Psychasthenia is a neurotic state characterized especially by phobias, obsessions, or compulsions that one knows are irrational.

what is erythrocytopenia?​

Answers

Answer:

Medical Definition of erythrocytopenia

: deficiency of red blood cells. — called also erythropenia.

Explanation:

If you like my answer than please mark me brainliest thanks

Explanation:

erythrocytopenia is deficiency of RBCs

For which of the following phenomena is intrinsic affinity necessarily more important than functional affinity?
A. Antibody-mediated opsonization of encapsulated bacterial pathogens
B. Assay using antibodies to detect small drugs in solution
C. Binding of C1q to immunoglobulin G (IgG) or IgM
D. Binding of neutralizing IgG antibodies to nonenveloped viruses​

Answers

Explanation:

B. Assay using antibodies to detect small drugs in solution

hope this helps you

have a nice day

Changes that Affect the body may take place where

Answers

Explanation:

All vital organs begin to lose some function as you age during adulthood. Aging changes occur in all of the body's cells, tissues, and organs, and these changes affect the functioning of all body systems.

Which of the following factors would LIMIT carrying capacity?
A. Far from factories or roads
B. A large nearby river
C. Abundant food
D. A small space to live in

Answers

Answer:

D. A small space to live in

Explanation:

Having a small space to live in would directly limit carrying capacity.

Since there is a small space, only a few organisms would be able to live in that space.

This means that carrying capacity is limited, because the space does not have enough room to sustain more people.

So, the correct answer is D. A small space to live in

Wall lizards are not seen during cold, Why?​

Answers

Wall lizard are not seen because blood becomes cold inside the body.

Answer:

Lizards are cold-blooded. They use their enviornment to control their body temperature. If a lizard is cold, it will go somewhere warmer. If a lizard is hot, it will go someone to cool off.

The lizard may find somewhere in direct sunlight, bury themselves in a hole, or bury themselves under leaves to keep warm.

two waste products of metabolic state their source and how they are removed from the blood​

Answers

All the metabolic wastes are excreted in a form of water solutes through the excretory organs (nephridia, Malpighian tubules, kidneys), with the exception of CO2, which is excreted together with the water vapor throughout the lungs. The elimination of these compounds enables the chemical homeostasis of the organism.

For those women who are not progressing at all or the baby is showing early signs of distress, the decision is
often made to induce labor. This uses a synthetic form of oxytocin, called Pitocin, which is given intravenously
(IV) to the woman to get the contractions going. It is often stopped after a few hours. Why might that be?

Answers

Answer:

It is common for contractions to occur every often meaning a sign of labor might be happening soon

Explanation:

Simply meaning your brain is telling your system the baby is ready

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