Question

Select the statements that describe the characteristics of genes.

i. Genes are specific sequences of bases in a DNA molecule
ii. A gene does not code for a protein
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

The correct option is B i and iii

Characteristics of a gene can be listed as follows:

1. A gene is a specific sequence of bases present in a stretch of DNA molecule.

2. The sequence of bases in a gene codes for a protein molecule.

3. In an individual of a given species, gene has fixed location on a particular chromosome. An alternate form of a gene exists and is called as allele.

5. Alleles are located as the same position on homologous chromosomes.