BIOLOGY COLLEGE

In chickens, comb shape is determined by alleles at two loci (R, r and P, p). A walnut comb is produced when at least one dominant allele R is present at one locus and at least one dominant allele P is present at a second locus (genotype R_ P_). A rose comb is produced when at least one dominant allele is present at the first locus and two recessive alleles are present at the second locus (genotype R_ pp). A pea comb is produced when two recessive alleles are present at the first locus and at least one dominant allele is present at the second (genotype rr P_). If two recessive alleles are present at the first and at the second locus (rr pp), a single comb is produced. A walnut is crossed with a pea chicken and the offspring consists of 3/8 walnut, 3/8 pea, 1/8 rose and 1/8 single. What are the probable genotypes of the parents

Answers

Answer 1
Answer:

Answer:

RpPp x RpPp

Explanation:

For the recessive trait to be expressed, both parents should have at least 1 allele for the recessive trait. Now you can see that both recessive traits were expressed in at least one of the off-springs, this means that both parents had the allele for each recessive trait.

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Answers

Answer:

The correct answer is E. Vertebrates have a closed circulatory system.

Explanation:

The main mission of the circulatory system is to deliver oxygen and nutrients to all body cells.

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Answers

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Answers

Answer: Food

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Hope this helped!
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Answers

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Answers

Answer:

A

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Answer:

A

Explanation:

Study Island

1. Wash your hands when theyare dirty and BEFORE eating
2. DO NOT cough into your hands
3. DO NOT sneeze into your hands
4. Above all, DO NOT put your
fingers into your eyes, nose or mouth
Question:
Why is it important to your good health to wash your hands?
Describe what could be on your hands and what might happen to you if you forget to wash your hands.

Answers

Answer: there is germs and bacteria on your hands that if you get on/in your body they will multiply and can cause you to get sick

Explanation:
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