Neco 2023 Biology Question 33

Practice objective / multiple choice question 33 from the 2023 Neco Biology examination.

Neco 2023 Biology Objective / Multiple Choice Medium Difficulty
Question 33 NECO • 2023 • BIOLOGY • objective

In a dihybrid cross two genes A/a and B/b are linked on the same chromosome with a recombination frequency of 12\%. One parent is heterozygous in the cis configuration (AB/ab) and the other parent is homozygous recessive (ab/ab). Determine the phenotypic ratio of the offspring.

Answer Options

A. 22 : 6 : 6 : 22 (dominant A & B : dominant A only : dominant B only : recessive).
B. 24 : 3 : 3 : 20 (dominant A & B : dominant A only : dominant B only : recessive).
Correct Answer C. 22 : 3 : 3 : 22 (dominant A & B : dominant A only : dominant B only : recessive).
D. 22 : 2 : 2 : 24 (dominant A & B : dominant A only : dominant B only : recessive).
Correct Answer
C
Correct Option:
22 : 3 : 3 : 22 (dominant A & B : dominant A only : dominant B only : recessive).

About This Question

This is Neco 2023 Biology Question 33. It is one of the objective questions from the 2023 Neco Biology examination.

Difficulty level: Medium .

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