Principle Of Inheritance And Variation Question 385

Question: Consider a gene that has two alleles and shows complete dominance. When two heterozygotes for this gene breed, they have a 25% chance of producing a homozygous recessive offspring. The next time they breed, what are the chances that they will once again have a homozygous recessive progeny?

Options:

A) 0%

B) 25%

C) 75%

D) 100%

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Each conception is an independent event, so the probabilities remain the same at every time.