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Related Questions
In chickens, comb shape is determined by genes at two loci (R, r and P, p). A walnut comb is produced when at least one dominant gene R is present at one locus and at least one dominant gene P is present at a second locus (genotype R_ P_). A rose comb is produced when at least one dominant gene is present at the first locus and two recessive genes are present at the second locus (genotype R_ pp). A pea comb is produced when two recessive genes are present at the first locus and at least one dominant gene is present at the second (genotype rr P_). If two recessive genes are present at the first and the second locus (rr pp), a single comb is produced. Give genotypes for comb shape of the parents in the following cross: Rose crossed with pea produces 20 walnut offspring.
a. RR PP × rr pp
b. RR Pp × rr pp
c. Rr PP × rr pp
d. Rr Pp × rr pp
e. Rr pp × rr pp
Answers
Answer:
in the obtained options, there is no dominant gene for the crossed pairs, therefore, no answer would be correct, however, when assigning a dominant character to the P gene, the correct answer would be:
E. Rr pp *rrPp
Explanation:
According to the information obtained we deduce:
Comb shape is produced by R and P
Comb of walnuts with an R or a P
Pink comb: 1 dominant P and R at the first locus and 2 recessive at the next locus
Pea comb: 2 recessive at the start and one dominant in the next position
1 single comb: 2 recessive at both loci
Rr pp × rr Pp will produce from the interbreeding: 2 walnuts, 1 single and 1 pea offspring.
We deduce that for the pink comb the genotype is: Rrpp
and for the pea comb it is rrPp
Rr pp × rr Pp generates crosslinks containing RrPp, rrPp, rrpp as children in a 2: 1: 1 ratio.
Land subsidence is caused by
O groundwater overpumping
O runoff
O gophers
O infiltration
Answers
Answer:
groundwater overpumping
Explanation:
Land subsidence occurs when large amounts of groundwater have been withdrawn from certain types of rocks, such as fine-grained sediments. The rock compacts because the water is partly responsible for holding the ground up. When the water is withdrawn, the rocks falls in on itself.
What did the "War Guilt Clause"
do to Germany after World War I?
A. It put the blame on Germany for World War I.
B. Germany would not be responsible for any
war debts.
C. It listed Germany as being part of the Black
Hand.
D. Germany would now be part of the Allied
Powers.
Corporation. All Rights Reserved.
Answers
Hopefully this help
Which types if the following sets of phenotypes describes James P. Sullivan?
A. Has two horns, two legs, and blue &purple fur
B. Has no legs, yellow eyes, and green fur
C. Has no fur, eyes on stalks, and spikes on back
D. Has clawed toes, three eyes, and blue &purple fur
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what is the importance of the folds and grooves of on the surface of the cerebrum
Answers
Conservationistis strive to preserve or improve biodiversity in ecosystems, which includes monitoring populations of organisms to detect changes. Name two challenges that scientists may encounter when they’re monitoring populations of organisms in the wild.
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Answer:
Conservationists are responsible to preserve or improve the biodiversity in ecosystem. Many wildlife sanctuaries are made to protect the biodiversity. There are several ways by which conservationists accomplish their aim such as monitoring populations of organisms to detect changes and promoting importnce of wildlife.
Two main challenges conservationists will face while monitoring population of organisms in wild are:
weather conditions may not support the monitoring equipments or clothing.Wildlife animals are dangerous and can cause harm.Hence, conservationists face the above challenges while dealing with wild.
Answer:
One challenge is cost. To effectively monitor populations in the wild, scientists need special equipment such as cameras, computers, and GPS monitoring equipment. Another challenge is accuracy. It’s impossible to count every single organism in an ecosystem, so scientists often work with estimates.
Explanation:
Use the drop-down menus to complete the sentences.
Horsetail has been used to____
Ferns are used around homes and businesses for____
Club moss is sold during the holidays as a____
Answers
Use the drop-down menus to complete the sentences.
Horsetail has been used to____
Ferns are used around homes and businesses for____
Club moss is sold during the holidays as a____
The answers are:
Treat urinary tract infections, Landscaping, & decoration.The correct answers are mentioned as used to treat kidney stones and UTI, Landscaping, decoration respectively.
What are vascular plants?Vascular plants are a group of plants that have a specialized system for transporting water, nutrients, and sugars from the roots to the leaves and other parts of the plant. This system, called the “vascular system,”
It consists of tubes called xylem and phloem that are responsible for moving water and nutrients, respectively. There are two main groups of vascular plants: ferns and seed plants.
Seed plants include conifers, such as pine trees, and flowering plants, such as roses and daisies, club moss and horsetail used for various purposes as mentioned above.
Learn more about vascular plants, here:
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WHAT IS (ARE) THE END RESULTS OF MITOSIS?*
Answers
Answer:
Explanation: Mitosis and meiosis result daughter cells for growth, development and reproduction in the living world. Mitosis results similar daughter cells generally for growth and development. ... The resultant daughter haploid cells unite during the fertilization process and retains the diploid number of chromosomes
Explanation:
PLS MARK ME BRAINLIEST I NEED IT PLEASE
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In simplest form what is RNA and how is it different from DNA?
Answers
Has ribose sugar
Single stranded
Has uracil
DNA
Deoxyribose sugar
Double stranded
Has thymine
What are the steps for hypothesis
Answers
Answer:
Step 1: State the Null Hypothesis.
Step 2: State the Alternative Hypothesis.
Step 3: Set.
Step 4: Collect Data.
Step 5: Calculate a test statistic.
Step 6: Construct Acceptance / Rejection regions.
Step 7: Based on steps 5 and 6, draw a conclusion about.
Explanation:
Which part of the brain is made of all four lobes? (Parts A, B, C, and D) *
Answers
Answer:
Yes frontal lobe is the correct answer.
Is the role of the liver
Answers
Answer:
The main role is to filter blood coming from the digestive tract before it passes through the rest of the body. The liver can also detoxify or remove toxic chemicals like drugs and metabolize them. The liver then creates bile that ends up back in the intestines.
Number of eyes found in earthworm
Answers
Answer:
none, worms dont have eyes
Explanation:
Answer:
0
Explanation:
Earthworms have no eyes, but they do have light receptors and can tell when they are in the dark, or in the light.
Explain what is happening to air mass from the sea as it moves up the side of the mountain and down the other side.
Answers
Answer:
The orographic effect creates cooler air moving up the windward side of mountains and warmer air moving down the leeward side. Often, as the leeward air plunges down the slope, it warms quite dramatically and rapidly. Such rapid warming and drying of air can produce very high winds known as Chinook or Foehn winds.
Explanation:
Sorry if i got it wrong
The punnet square shows the results when two parent cows are crossed. R represents red hair and represents white hair. Which best describes this inheritance pattern?
Answers
Answer:codominance
Explanation: Both genes will be expressed equally without overshadowing the other
Answer:
A
Explanation:
Incomplete dominance because the intermediate from of the trait is chosen
Plant species A cannot fight most fungal infections, while plant species B makes a protein that kills many fungi.
What is one possible way for humans to engineer species A plants that can produce the fungus-killing protein?
Answers
Answer:They can insert the gene for the protein from species B into a chromosome in species A.
Explanation:
The one possible way for human to engineer species should be that it should insert the gene for the protein.
What is fungal infections?It is known as the mycosis that represent the disease on the skin that should be caused by the fungus. There are various kind of species of fungi. It should be lived on dirt, on plants, or the surface on the household and even on the skin. It would leads into the rashes or bumps in the skin problem
Therefore, The one possible way for human to engineer species should be that it should insert the gene for the protein.
Learn more about fungal here: https://brainly.com/question/24859105
How is electricity generated in the simulation?
Answers
Answer:
(LONG RESPONSE!)
In this work, several simulations and analyses are carried out to investigate the feasibility of generating electricity from underwater sea currents at Istanbul Bosphorus Strait. Bosphorus is a natural canal which forms a border between Europe and Asia by connecting Black Sea and Marmara Sea. The differences in elevation and salinity ratios between these two seas cause strong marine currents. Depending on the morphology of the canal the speed of the flow varies and at some specific locations the energy intensity reaches to sufficient levels where electricity generation by marine current turbines becomes economically feasible.
In this study, several simulations are performed for a 10 MW marine turbine farm/cluster whose location is selected by taking into account several factors such as the canal morphology, current speed and passage of vessels. 360 different simulations are performed for 15 different virtual sea states. Similarly, 8 different configurations are analyzed in order to find the optimum spacing between the turbines. Considering the spatial variations in the current speed within the selected region, the analyses are performed for three different flow speeds corresponding to ±10% change in the average value. For each simulation the annual energy yield and cluster efficiency are calculated.
Why is it important for Scientists to develop a way to grow tissues that have built-
in system to supply
blood?
Answers
It is important for scientists to develop a way to grow tissues that have a built-in system to supply blood? A lack of blood flow determines the number of cell layers that can survive when they are transplanted. A lack of blood flow determines the types of tissues that can be grown in culture.
Answer:
ghgcktv bm
Explanation:
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If water were a nonpolar molecule, how would its properties be different?
Answers
Answer:
Water would not be able to climb up inside plants.
Explanation:
Answer: water would not stick together as well
Explanation:
Which are the major functions of the genetic material
Answers
Answer: usally genetic material is the "coding" for a organism. It tells the organism how to complete basic needs.
Explanation:
What is the fitness of an organism?
Answers
Answer:the fitness of an organism is the ability to survive and reproduce
Explanation:
based on the scientists results, which of the following is true?
Answers
15. Knowing that the genetic code is almost universal, a scientist uses molecular biological methods to insert the human B-globin gene into bacterial cells, hoping the cells will express it and synthesize functional B-globin protein. Instead, the protein produced is non-functional and is found to contain many fewer amino acids than does B-globin made by a eukaryotic cell. Explain why.
Answers
Answer:
The genetic information of living organisms is sequenced in DNA, which allows inheritable factors to be transmitted with each replication process. Proteins play a very important role by intervening in their metabolism during the translation and transcription of information. .
eukaryotic and prokaryotic organisms have different evolutionary sequelae that are reflected in the mechanisms they use for DNA translation, such as in the initial stages, lengthening and termination of sequencing, these differences are imparted by the order of the genes, the ribosome and its structural form and the promoter sequences.
In this way we can conclude that although the eukaryotic genes enter into a bacterium, the type of information that they take may arrive incomplete and this may generate subsequent defects for their operation, but there may be processes that guarantee a better transfer of information with the use of genetic engineering and enzyme management to introduce different bacterial genetic expressions with eukaryotic genes.
Eukaryotic cells like humans and prokaryotic cells like bacteria vary in central dogma methods.
The generative data of an organism is stored in the sequenced DNA that gets transferred during the process of replication.
The DNA transcription and translation process in prokaryotes and eukaryotes differ like the steps concerned in the beginning and the termination of the arrays are defined by various sets of genes in both types of organisms.
The promoter, ribosomes and the structural genes make both the organism distinct from each other.
So, when the eukaryotic gene intrudes bacteria may lack some data that can get misinterpreted and the resulted proteins or amino acids will differ.
To learn more about prokaryotic and eukaryotic gene expression follow the link:
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Biologists notice that a population of ferrets introduced into a reserve begins to show exponential growth. The figures represent the population of the ferrets for the first four years after their introduction. Which set of figures represents the exponential growth of the ferrets? A. 50, 88, 145, 227 B. 50, 92, 90, 95 C. 50, 32, 17, 9 D. 50, 95, 59, 97
Answers
Answer:
A. 50, 88, 145, 227
Explanation:
The correct option would be option A.
When something grows exponentially, it means the growth increased at a high rate. More specifically, each rate of increase results in more or less doubling of the preceding rate. For example, if the current value of growth rate is 2 for a substance that is growing exponentially, the next growth rates will be 4, 8, 16, etc.
In this particular illustration, the only option that best fit into an exponential system is option A in which the growth rate more or less doubles each time from 50 to 88, from 88 to 145, and then from 145 to 227.
Answer:
A
Explanation:
I just got it right.
Jaden’s mass is 50 kilograms. His weight on Earth is
Answers
Answer:
Weight of the Jaden on earth is 490 N.
Explanation:
Formula
w = mg
Where w is the weight of an object , m is the mass of an object and g is acceleration of gravity .
Gravity on Earth is 9.8 m/s² .
Jaden’s mass is 50 kilograms.
g = 9.8 m /s²
m = 50
Put the values in the formula
Thus
w = 50 × 9.8
= 490 kg m /s²
(As N = kg m/ s²)
= 490 N
Therefore the weight of the Jaden on earth is 490 N.
Which phrase best describes the rock's texture
Answers
Answer:
Foliated
Explanation:
All BUT ONE is a reason why environmentalists question biofuels as sustainable energy resources.
A) The production of certain biofuels consumes more water than any type of fuel energy.
B) Large-scale biofuel production would divert land from producing food needed to feed the world.
C) Reduction in greenhouse gas emissions drastically reduces the carbon footprint of a combustible fuel.
D) Biofuel production can result in habitat loss and increased invasive species, especially if crop production replaces native forest.
Answers
Answer:
C.
Explanation:
The question states it is looking for a reason that supports biofuels instead of questioning them and all but C. explain that biofuels may not be a good energy source, so the answer is C
Which is an application of DNA technology in medicine?
mapping human genes for manipulation
determining specific traits that a baby will have before its conception
producing disease resistant humans
determining hereditary diseases in individuals and familiesWhich is an application of DNA technology in medicine?
Answers
Answer:
determining hereditary diseases in individuals and families
Explanation:
DNA technology is used to join together DNA segments. DNA technology includes DNA sequencing and DNA cloning.
DNA technology is important to the pharmaceutical industry. By genetic modifications such as high nutrition value, it helps in improving the food production quality.
DNA technology helps in determining hereditary diseases in individuals and families.
Answer:
D - determining hereditary diseases in individuals and families
Explanation:
What is a stem cell?
Answers
Explanation:
A stem cell is a cell with the unique ability to develop into specialised cell types in the body. In the future they may be used to replace cells and tissues that have been damaged or lost due to disease.
Abigail just completed a report on plastics, which are manufactured using petroleum. She concluded that the price of plastic will
likely rise significantly in the years to come as petroleum reserves are depleted. She recommends that manufacturers begin making
less plastic from petroleum reserves to prevent extreme price increases in the future.
Abigail's younger brother Henry just completed a report on waste management. Henry concluded that plastic products are a major
component of garbage that ends up in landfills. He recommends that humans reduce the amount of plastic they put in landfills.
Which of the following would help implement both Abigail's and Henry's recommendations?
A. Recycle more plastic products.
B.
Use alternatives to plastic products, such as canvas grocery bags.
C.
Reuse more plastic products,
D.
all of these
Answers
Answer:
all of theseExplanation:
study island
Answer: All of these
Explanation:
