Question

Which of the following statements hold true for a gene?

• A. Distinct sequence of nucleotides of DNA that codes for a specific protein
• B. Physical and functional unit of heredity
• C. Sum total of an organisms DNA
• D. Both (a) and (b)

Answer 1

The correct option is D Both (a) and (b)

A gene may be defined as a distinct sequence of nucleotides of DNA that usually code for a specific protein. The genes are the physical and functional unit of heredity. Genes are passed from parents to offspring and contain the information needed to specify traits.
Sum total of an organisms DNA is referred to as the genome of the organism. It includes genes that code for proteins, genes that do not code for proteins as well as mitochondrial DNA and chloroplast DNA( in the case of plants).