Characteristics that exhibit continuous variation are generally controlled by

A. a single gene

B. recessive genes

C. epistatic interactions

D. multiple genes

Differences in characteristics that exist among individuals of the same species is referred to as

A. genetics

B. dominance

C. hybird

D. variation

Which of the following traits is not a morphological variation in humans?

A. Ability to taste PTC

B. Colour

C. Fingerprints

D. Size

Which of the following statements about chromosomes is correct?

A. All the chromosomes of a species are the same in shape

B. the bear number present in a species is constant

C. they are neatly arranged in the eytoplasm

D. They bear ribosomes on their outer membranes

A small stem from a hibiscus plant was placed in a nutrieent medium, and it developed into a new plant. The new plant was reproduced

A. asexually with different genotype from the parent plant

B. sexually with a different genotype from the parent plant

C. asexually with the same genotype as the parent plant

D. sexually with the same genotype as the parent plant

The F1 generation of a cross between a red cock and white hen were all red because the gene for the

A. white colour did not segregate

B. red colour was dominant

C. white colour was dominant

D. red colour was recessive

Which of the following diseases can be inherited?

A. pneumonia

B. AIDS

C. sickle cell anaemia

D. goitre

In dihybrid inheritance, Mendel considered

A. a pair of contrasting characters

B. two pairs of contrasting characters

C. three pairs of contrasting characters

D. four pairs of contrasting characters

The main reason for nuptial flight in termites is to

A. escape unfavourable conditions

B. search for food

C. form new colonies

D. communicate with one another

Which of the following organisms is not a social insect?

A. Termites

B. Ants

C. Grasshoppers

D. Bees