From health tips to tech hacks, find it all on IDNLearn.com. Discover comprehensive answers to your questions from our community of experienced professionals.

If a red cow (homozygous dominant) is crossed with a white cow (homozygous dominant), what alleles will the offspring have?

A. Rw
B. RW
C. rW
D. rw


Sagot :

Certainly! Let's examine the genetic cross between a red cow and a white cow, both of which are described as homozygous dominant.

1. Definition of Homozygous Dominant:
- A homozygous dominant organism has two copies of the dominant allele (e.g., "RR" or "WW"). In this case, we have:
- Red cow: RR (since it's homozygous dominant for the red color)
- White cow: WW (since it's homozygous dominant for the white color)

2. Crossing the Two Parents:
- To determine the alleles the offspring will have, we perform a genetic cross between RR and WW.

3. Formation of Alleles in Offspring:
- Each offspring will inherit one allele from each parent. Thus, each possible combination for the alleles must be considered.
- Since the red cow can only contribute an "R" allele and the white cow can only contribute a "W" allele, the offspring will consistently receive one "R" allele from the red cow and one "W" allele from the white cow.

4. Resulting Alleles of the Offspring:
- Therefore, the alleles of the offspring will be a combination of one allele from each parent, which results in "RW".

Hence, the alleles for the offspring of a red cow (homozygous dominant) crossed with a white cow (homozygous dominant) will be:
RW
Thank you for joining our conversation. Don't hesitate to return anytime to find answers to your questions. Let's continue sharing knowledge and experiences! Thank you for choosing IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more solutions.