Question

Match the organisms in column I with their respective linkage group in column II.
Column-I Column-II

Organism	Linkage group
A. Maize	P. 4
B. Pea	Q. 10
C. Mucor	R. 7
D. Fruit fly	S. 2

• A. A-R, B-S, C-P, D-Q
• B. A-S, B-R, C-Q, D-P
• C. A-Q, B-R, C-P, D-S
• D. A-Q, B-R, C-S, D-P

Answer 1

The correct option is D A-Q, B-R, C-S, D-P

Genes are located on the chromosomes, every chromosome contains a certain number of genes. The genes that are present on the same chromosome tend to link together and inherit together rather than moving independent and different entities, which contrasts with Mendel's inheritance law, specifically the law of independent assortment. A linked group is a linearly arranged group of genes on a single chromosome that are inherited together. The linkage group is ideally equal to the haploid chromosome numbers.
The table below, shows the number of chromosomes of the organisms and their linkage groups

Organism	2n	n	Linkage group
Maize	20	10	10
Pea	14	7	7
Mucor	4	2	2
Fruit fly	8	4	4