Genetic Crosses That Involve 2 Traits In Rabbits Answer Key

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Introduction

When it comes to genetics, there are a lot of complexities involved, especially when it comes to the way traits are inherited. In rabbits, for instance, there are genetic crosses that involve 2 traits. In this article, we’ll be discussing some of these genetic crosses and how they work.

What are Genetic Crosses?

A genetic cross is a breeding experiment that involves the crossing of two organisms with different traits. The purpose of this experiment is to study how traits are inherited and to predict the possible outcomes of future offspring.

Crossing Two Traits in Rabbits

When it comes to rabbits, there are two common traits that are often studied in genetic crosses. These are coat color and eye color. In this section, we’ll be discussing how these two traits are inherited and how they can be crossed.

Coat Color

Coat color in rabbits is determined by two genes: B and C. The B gene determines whether the rabbit’s coat is black or brown, while the C gene determines whether the rabbit’s coat is full color or albino.

Eye Color

Eye color in rabbits is determined by a single gene: A. This gene has two alleles: A and a. The A allele is dominant and produces brown eyes, while the a allele is recessive and produces blue eyes.

Genetic Crosses Involving Coat Color and Eye Color

Now that we’ve discussed the basics of coat color and eye color inheritance, let’s take a look at some genetic crosses that involve these two traits.

Cross 1: Black Full Color x Brown Albino

In this cross, the B gene for coat color is dominant over the b gene. The C gene for full color is dominant over the c gene for albino. The A allele for brown eyes is dominant over the a allele for blue eyes. The possible offspring from this cross are: – Black Full Color Brown Eyes – Black Albino Brown Eyes – Brown Full Color Brown Eyes – Brown Albino Brown Eyes – Black Full Color Blue Eyes – Black Albino Blue Eyes – Brown Full Color Blue Eyes – Brown Albino Blue Eyes

Cross 2: Black Full Color x Brown Full Color

In this cross, both rabbits have the same coat color gene. The A allele for brown eyes is dominant over the a allele for blue eyes. The possible offspring from this cross are: – Black Full Color Brown Eyes – Brown Full Color Brown Eyes – Black Full Color Blue Eyes – Brown Full Color Blue Eyes

Conclusion

In conclusion, genetic crosses involving two traits in rabbits can be complex and require a certain level of understanding of genetics. By understanding how these traits are inherited, breeders can make informed decisions when it comes to breeding rabbits with specific traits.

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