Biology Past Questions and Answers

The diagram below is an illustration of a cross between plants A and B of the same species. Study it and answer the question below;

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

A YYRR
B YyRr
C YyRr
D Yyrr

Question 1982:

A child that can receive blood donation from anybody belongs to the blood group

A O
B A
C B
D AB

Question 1983:

Variation which exhibits a wide range from one extreme to the other is

A Phenotypic variation
B Discontinuous variation
C Continuous variation
D Genotypic variation

Question 1984:

Measurements of height and weight of students in a class show

A Discontinuous variation
B Continuous variation
C Shortness is more prevalent
D Fatness is less prevalent

Question 1985:

Which of the following statements about chromosomes is correct?

A All the chromosomes of a species are the same shape
B The number present in a specie is constant
C They are neatly arranged in a cytoplasm
D They bear ribosomes on their outer membranes