Question

Match the following:

Column-I Column-II

A. Locus 1. Genetic makeup of an organism

B. Homozygous 2. Both the alleles of a gene are non-identical

C. Heterozygous 3. Both the alleles of a gene are identical

D. Phenotype 4. Position of gene on chromosome

E. Genotype 5. Physical expression of gene

• A. A-4, B-3, C-2, D-1, E-5
• B. A-1, B-1, C-3, D-4, E-5
• C. A-5, B-4, C-3, D-2, E-1
• D. A-4, B-3, C-2, D-5, E-1

Answer 1

The correct option is D

A-4, B-3, C-2, D-5, E-1

The position of a gene on the chromosome is called locus. An organism in which both the alleles of a gene are identical is called a homozygote (the condition being homozygous). If the alleles are non-identical, the organism is a heterozygote (heterozygous condition). The physical expression of a gene is called phenotype and the genetic makeup is called genotype.