Question

Match the following:

$\begin{array}{cc}ColumnI& ColumnII\\ \text{A. Locus}& \text{1. Genetic makeup of an organism.}\\ \text{B. Homozygous}& \text{2. Both the alleles of a gene are non-identical.}\\ \text{C. Heterozygous}& \text{3. Both the alleles of a gene are identical.}\\ \text{D. Phenotype}& \text{4. Position of gene on chromosome.}\\ \text{E. Genotype}& \text{5. Physical expression of gene.}\end{array}$

• 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.