The major types of man’s finger prints do not include

A. arch

B. compound

C. simple

D. loop

Which of the following is an example of discontinuous variation?

A. Height of students

B. Complexion of beauty contestants

C. Blood groups of patients

D. Weight of weight lifters

Which of the following statements is correct about variation?

A. Offsprings are different from their parents only

B. Offsprings from the same parents look alike

C. Offsprings differ from their ancestors but look like their immediate parents

D. offsprings differ from their ancestors and from each other

Which of the following statements about sex determination is correct? At fertility

A. the probability of male to female offspring is 1/2

B. the Y chromosome of the father decreases the probability of having a male child to 3/4

C. the xx chromosome of the mother decreases the probability of having a female child to 3/4

D. the vigour of either parents determines the sex of the offspring

The genotypic ratio of 1 : 2 : 1 in the offspring of a hybrid cross illustrates the law of

A. use and disuse

B. dominance

C. segregation

D. linkage

Which of the following scientists was involved with organic evolution?

A. Mendel

B. Larmarck

C. Morgan

D. Pasteur

Which of the following traits may not be important in marriage counselling

A. Sex-determination

B. Sickle-cell anaemia

C. Rhesus factor

D. Colour of skin

In fishes, the brooders return to their parents mouth for

A. feeding

B. respiration

C. breeding

D. protection

According to Charles Darwin’s Theory of Evolution, natural selection involves the survival of the

A. weakest

B. most populous

C. youngest

D. Fittest

Which of the following habitats cannot be used for the study of succession?

A. Savanna grassland

B. Abandoned farmland

C. A pond

D. Well cultivated land