WAEC Biology 2020 Objective — Question 46

Question 46 of 50 from the West African Examinations Council (WAEC) Biology 2020 Objective paper, with the correct answer and a full explanation.

If the F1 generation are plants with high yield and resistance, the genotype of the F1 generation plants would be

A. YYRR
B. YyRrCorrect
C. yyRr
D. yyrr

Explanation

Given the parent genotypes YYrr (high yield, low resistance) and yyRR (low yield, high resistance), the F1 generation (crossing these) would have the genotype YyRr.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Biology 2020 Objective More Biology past papers