Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Join our Q&A platform to connect with experts dedicated to providing precise answers to your questions in different areas. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

If an organism that is homozygous recessive for a trait is crossed with a heterozygote, what is the chance of getting a homozygous recessive phenotype in the first generation?
A. 0
B. 0.25
C. 0.5
D. 1


Sagot :

The answer is C. We suppose the gene type of homozygous recessive is "aa", and the heterozygote is "Aa", then the first generation will be "Aa" or "aa" which are equal chance. So the chance of getting a homozygous recessive phenotype is 0.5.