We appreciate your visit to In rabbits there are 3 alleles that determine fur color Note C is dominant to all other alleles tex begin array c c c c. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Let's work through this problem:
We are given information about a genetic cross involving rabbits with different fur color phenotypes. Specifically, we are crossing a chinchilla rabbit (black-tipped white fur) with an albino rabbit (white fur).
First, let's understand the genotypes and phenotypes involved:
1. Chinchilla Rabbit:
- Phenotype: Black-tipped white fur
- Genotype: rr
2. Albino Rabbit:
- Phenotype: White fur
- Genotype: cc
When you cross these two rabbits, they can only pass on the alleles they possess:
- The chinchilla rabbit contributes the allele `r`.
- The albino rabbit contributes the allele `c`.
As both parents carry recessive alleles (and no parent has the dominant `C` allele), the possible offspring genotypes from this cross will be:
- All offspring will have the genotype `rc`.
Now, let's match the genotype `rc` to its phenotype:
- The genotype `rc` corresponds to the Himalayan phenotype, which is characterized by white fur with black paws, nose, ears, and tail.
Since all offspring from this cross will have the genotype `rc`, all of them will express the Himalayan phenotype.
Therefore, the probability of the offspring having the Himalayan phenotype is 100%.
So, the correct answer is:
- (B) 100% Himalayan
We are given information about a genetic cross involving rabbits with different fur color phenotypes. Specifically, we are crossing a chinchilla rabbit (black-tipped white fur) with an albino rabbit (white fur).
First, let's understand the genotypes and phenotypes involved:
1. Chinchilla Rabbit:
- Phenotype: Black-tipped white fur
- Genotype: rr
2. Albino Rabbit:
- Phenotype: White fur
- Genotype: cc
When you cross these two rabbits, they can only pass on the alleles they possess:
- The chinchilla rabbit contributes the allele `r`.
- The albino rabbit contributes the allele `c`.
As both parents carry recessive alleles (and no parent has the dominant `C` allele), the possible offspring genotypes from this cross will be:
- All offspring will have the genotype `rc`.
Now, let's match the genotype `rc` to its phenotype:
- The genotype `rc` corresponds to the Himalayan phenotype, which is characterized by white fur with black paws, nose, ears, and tail.
Since all offspring from this cross will have the genotype `rc`, all of them will express the Himalayan phenotype.
Therefore, the probability of the offspring having the Himalayan phenotype is 100%.
So, the correct answer is:
- (B) 100% Himalayan
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