College

We appreciate your visit to Suppose that a rabbit breeder notices two individuals in a litter with large round noses and names this trait the clown trait He obtains another. 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!

Suppose that a rabbit breeder notices two individuals in a litter with large, round noses and names this trait the clown trait. He obtains another rabbit that has a long, thin nose and names it the Pinocchio trait. After breeding the rabbits with unusual nose shapes to wild-type individuals for several generations, he decides to cross rabbits from families with a history of the clown and Pinocchio traits. The first litter from this cross results in individuals of four phenotypes: clown, Pinocchio, wild-type, and heart-shaped noses. The pedigree illustrates the inheritance of these traits. Individuals 1 and 4 are siblings and are known to come from a true-breeding wild-type line.

1. What is the most likely mode of inheritance for the clown nose?
a. Y-linked
b. X-linked dominant
c. X-linked recessive
d. Autosomal dominant
e. Autosomal recessive

2. What is the most likely mode of inheritance for the Pinocchio nose?
a. Sex-influenced
b. X-linked dominant
c. X-linked recessive
d. Autosomal dominant
e. Autosomal recessive

Answer :

Final answer:

The clown nose trait is most likely inherited in an autosomal dominant pattern, while the Pinocchio nose trait is most likely inherited in an autosomal recessive pattern.

Explanation:

The most likely mode of inheritance for the clown nose is autosomal dominant. Autosomal dominant traits are inherited from one parent who carries the dominant allele. In this case, the clown nose trait appears in the offspring when at least one parent has the dominant allele for the trait.

The most likely mode of inheritance for the Pinocchio nose is autosomal recessive. Autosomal recessive traits only appear in the offspring when both parents carry the recessive allele. In this case, the Pinocchio nose trait appears in the offspring when both parents carry the recessive allele for the trait.

Thanks for taking the time to read Suppose that a rabbit breeder notices two individuals in a litter with large round noses and names this trait the clown trait He obtains another. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada

Answer:

1. The probable method of inheritance for the nose is a male chromosome-linked recessive.

2. The probable method of inheritance for the Pinocchio nose is in the autosomal chromosomes, with a dominance factor.

Explanation:

1. The gene is observed to be expressed in males.

2. The gene of Pinocchio expression has been expressed from the parents with equal phenotype.