Two Linked Genes, (A) and (B), Are Separated by 18

question 7

Multiple Choice

Two linked genes, (A) and (B) , are separated by 18 m.u. A man with genotype Aa Bb marries a woman who is aa bb. The man's father was AA BB. What is the probability that their first child will be Aa bb?

• A) 0.18
• B) 0.41
• C) 0.09
• D) 0.25
• E) 0.50

---

Definitions:

Male

Referring to the sex that produces small, mobile gametes (sperm) in sexually reproducing species, typically associated with XY chromosome configuration in mammals.

Unconditioned Response

A natural, automatic reaction to a stimulus that occurs without prior conditioning or learning.

Pavlov

A Russian physiologist known for his work on classical conditioning, demonstrating the concept of the conditioned reflex.

Classical Conditioning

An educational method where two signals are consistently associated together, leading to a reaction initially triggered by the second signal but ultimately provoked by just the first signal.