Question

Select the statements that describe characteristics of genes.
(i) Genes are specific sequence of bases in a DNA molecule.
(ii) A gene does not code for proteins.
(iii) In individuals of a given species, a specific gene is located on a particular chromosome.
(iv) Each chromosome has only one gene.

• A. (i) and (ii)
• B. (i) and (iii)
• C. (i) and (iv)
• D. (ii) and (iv)

Answer 1

Answer: (B)

(i) and (iii)

Gene is a particular sequence of DNA, that codes for a particular protein and is present on a particular location on a given chromosome. Genes are located on chromosomes, which usually carry many genes. All the members of a species, have a same (not identical) genes located on the same chromosomes. Thus, gene sequence remains same on the chromosomes in different individuals of a species.