Consider the following statements:
1. A chromosome consists of DNA, which consists of genes
2. Most of the human DNA codes for proteins
Which among the above is / are correct statements?

Answer: [A] Only 1

The entire chromosome consists of DNA. However, less than 3% of the DNA actually consists of genes. There are thought to be about 30,000 genes in humans. Less than 3% of human DNA codes for proteins. Most of the DNA in eukaryotic chromosomes consists of repetitive sequences that never get transcribed.

This question is a part of GKToday's Integrated IAS General Studies Module