JAMB Biology Past Questions & Answers - Page 78

386.

One of the following is a process of transmission of hereditary characteristics by chromosomes

A.

Genes relating to the same character occupy identical locations on the chromosomes

B.

Separating homologous chromosomes into four daughter cells

C.

Separating gametes during fertilization

D.

Dictating the formation of a protein by a gene in a chromosome

Correct answer is D

Dictating the formation of a protein by a gene in a chromosome is a process of transmitting hereditary characteristics

387.

Inheritable character/features possessed by an organism can be referred to as

A.

Genes

B.

Locus

C.

Traits

D.

Allelomorphs

Correct answer is C

A trait is an inheritable character/inheritable feature possessed by an organism.

388.

Which of the following is not a transmitable character in plants

A.

Habit of growth

B.

Resistance to environmental factors

C.

Life span

D.

Haemophilia

Correct answer is D

Haemophilia is any of several hereditary illnesses that impact the body's ability to control bleeding usually passed from mother to son.

389.

One of the major ways in which the blood is able to defend the body against disease causing organisms is

A.

Absorption of fatty acids and glycerol

B.

Clumping

C.

Single circulation

D.

Translocation

Correct answer is B

One of the major ways in which the blood is able to defend against disease is clumping.

390.

Which of the following describes the function of lymph?

A.

Temperature regulation

B.

Production of antibodies

C.

Engulfing

D.

Body defence

Correct answer is D

Lymph serves as body defence.