Waec Model Questions Vol1 2018 Biology Question 39

Practice objective / multiple choice question 39 from the 2018 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2018 Biology Objective / Multiple Choice Medium Difficulty

Question 39 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • BIOLOGY • objective

In pea plants, two linked genes A (tall, dominant) and B (purple flower, dominant) are in coupling phase (AB/ab) with a recombination frequency of 10 %. A heterozygous plant AaBb is self‑fertilized. What proportion of the progeny are expected to display the tall‑purple phenotype?

Answer Options

A. ≈ 55 % (0.55)

Correct Answer B. ≈ 70 % (0.7025)

C. ≈ 60 % (0.60)

D. ≈ 85 % (0.85)

Correct Answer

Correct Option:

≈ 70 % (0.7025)

About This Question

This is Waec Model Questions Vol1 2018 Biology Question 39. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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Waec Model Questions Vol1 2018 Biology Question 39

In pea plants, two linked genes A (tall, dominant) and B (purple flower, dominant) are in coupling phase (AB/ab) with a recombination frequency of 10 %. A heterozygous plant AaBb is self‑fertilized. What proportion of the progeny are expected to display the tall‑purple phenotype?

Answer Options

About This Question

Master the Exam!

In pea plants, two linked genes A (tall, dominant) and B (purple flower, dominant) are in coupling phase (AB/ab) with a recombination frequency of 10 %. A heterozygous plant AaBb is self‑fertilized. What proportion of the progeny are expected to display the tall‑purple phenotype?