Year : 
2013
Title : 
Biology
Exam : 
WASSCE/WAEC MAY/JUNE

Paper 1 | Objectives

41 - 50 of 52 Questions

# Question Ans
41.

In genetics, linkages refer to the linking of genes of the

A. same chromosomes

B. different chromosomes

C. same nucleus

D. different nuclei

Detailed Solution

Linkage refers to the presence of two different genes on the same chromosome
42.

A man's blood group is AB. What is the probability of the man giving birth to a child with blood group O?

A. 0%

B. 25%

C. 50%

D. 100%

A

43.

When a man who is Rh-positive marries a woman who is Rh-negative, there will be incidence of

A. still births

B. sicklers

C. albinos

D. living children

A

44.

The gene that is only located on X-choromosome is said to be

A. expressed in females only

B. defective

C. sex-linked

D. expressed in males only

C

45.

If a boy has blood type O and his mother has blood type A,what is the genotype of his father?

A. BB

B. AA

C. AO

D. AB

C

46.

A man's who suffers from haemophilia marries a woman who is a carrier, what percentage of their children are likely to be haemophilie?

A. 25%

B. 50%

C. 75%

D. 100%

B

47.

Which of the following traits may be considered in marriage counseling?

A. Height

B. Fingerprints

C. Rhesus factor

D. Colour of skin

C

48.

Which of the following structures is only formed during cell division in animal cells?

A. Cell memberane

B. Cytoplasm

C. Centrosome

D. Ribosome

C

49.

The function of the drone in a colony of bees is to

A. clean the cells

B. mate with the queen

C. protect the colony

D. lay eggs

B

50.

Which of the following features is used by chameleons to escape predation?

A. fearsome appearance

B. coiling tail

C. offensive smell

D. adaptive colouration

D

41.

In genetics, linkages refer to the linking of genes of the

A. same chromosomes

B. different chromosomes

C. same nucleus

D. different nuclei

Detailed Solution

Linkage refers to the presence of two different genes on the same chromosome
42.

A man's blood group is AB. What is the probability of the man giving birth to a child with blood group O?

A. 0%

B. 25%

C. 50%

D. 100%

A

43.

When a man who is Rh-positive marries a woman who is Rh-negative, there will be incidence of

A. still births

B. sicklers

C. albinos

D. living children

A

44.

The gene that is only located on X-choromosome is said to be

A. expressed in females only

B. defective

C. sex-linked

D. expressed in males only

C

45.

If a boy has blood type O and his mother has blood type A,what is the genotype of his father?

A. BB

B. AA

C. AO

D. AB

C

46.

A man's who suffers from haemophilia marries a woman who is a carrier, what percentage of their children are likely to be haemophilie?

A. 25%

B. 50%

C. 75%

D. 100%

B

47.

Which of the following traits may be considered in marriage counseling?

A. Height

B. Fingerprints

C. Rhesus factor

D. Colour of skin

C

48.

Which of the following structures is only formed during cell division in animal cells?

A. Cell memberane

B. Cytoplasm

C. Centrosome

D. Ribosome

C

49.

The function of the drone in a colony of bees is to

A. clean the cells

B. mate with the queen

C. protect the colony

D. lay eggs

B

50.

Which of the following features is used by chameleons to escape predation?

A. fearsome appearance

B. coiling tail

C. offensive smell

D. adaptive colouration

D