In rabbits, white fur is recessive while brown fur is dominant.
Explain how in full sentences a rabbit could be born and have white fur (only recessive) even though
both parents have brown fur? Hint: Both parents are heterozygous. In your
explanation, describe 1) how dominant and recessive alleles affect each other, 2)
what it means to be heterozygous, and 3) how this leads to the offspring with white
fur (recessive only).

Coat color in rabbits is inherited as a series of multiple alleles. This means that there can be more than just 2 alleles for a single gene. In the case of coat color in rabbits, there are four alleles, and each one is expressed with a different phenotype.

Explanation:

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Upendo Upendo · Answer 2 · 2021-10-01T10:49:36+02:00

Let brown far be BB

Let for white fur be bb

since both parents are heterozygous

then,

Bb for mother and Bb for father.

When the parent's alleles are crossed to produce offspring,

Bb Bb

| \ | \ = BB bb Bb Bb

B b B b

since B is dominant that means one offspring will have white fur and three offsprings have brown fur.

1) Dominant allele over recessive allele means an organism will exhibit the characteristics known to the given dominant allele unless an offspring produced with both recessive alleles then it'll exhibit the recessive characteristics. It must be known that an organism with the recessive alleles will act as a carrier until offspring production.

2) Heterozygous is to have both dominant and recessive alleles at once or have two different alleles. Just like the parents of the rabbit.

3) As seen above in the crossing to produce offspring a white furred rabbit is possible due to the heterozygous nature of the parents able to give the recessive alleles since they carried it.