Match the terms in column I with their explanations in column II.

Column I (Term)	Column II (Explanation)
a. Genetics	(i) Chromosomes similar in size and shape
b. Autosomes	(ii) The alternative forms of a gene
c. Recessive gene	(iii) Study of laws of inheritance of characters
d. Allele	(iv) A gene that can express only when in a similar pair
e. Homologous Chromosomes	(v) Chromosomes other than the pair of sex chromosomes.

Column I

Column II

Explanation

a. Genetics

(iii) Study of laws of inheritance of characters

Genetics is the study of various characteristics or traits and how they are transmitted from one generation to the next.

b. Autosomes

(v) Chromosomes other than the pair of sex chromosomes.

Autosomes are the chromosomes other than the sex chromosomes and are similar in both males and females.

c. Recessive gene

(iv) A gene that can express only when in a similar pair

A recessive gene is not expressed when paired with a dominant gene. Recessive genes are only expressed when paired with another recessive gene.

d. Allele

(ii) The alternative forms of a gene

The alternative forms of the gene located at the same position on the homologous chromosome.

e. Homologous chromosome

(i) Chromosomes similar in size and shape

The chromosomes pair which is exactly similar and bear genes at same loci are called homologous chromosomes.