Neco Model Questions Vol1 2021 Biology Question 45
Practice objective / multiple choice question 45 from the 2021 Neco Model Questions Vol1 Biology examination.
Two genes, \(A\) and \(B\), are linked on the same chromosome with a recombination fraction of 0.20. One parent is heterozygous in coupling phase (\(AB/ab\)) and the other parent is homozygous recessive (\(ab/ab\)). (a) What is the probability that a gamete from the heterozygous parent carries the recombinant genotype \(Ab\)? (b) Assuming the trait controlled by gene \(A\) is dominant and the trait controlled by gene \(B\) is recessive, what is the probability that an offspring will display the phenotype requiring at least one dominant \(A\) allele and homozygous recessive \(bb\) genotype?
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This is Neco Model Questions Vol1 2021 Biology Question 45. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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