Identify the incorrect statement about the human genome-

The correct answer is Option (1) → Repeated sequences make up very small portion of the human genome.

Option (1) Repeated sequences make up very small portion of the human genome. — An incorrect statement. The Human Genome Project found that repeated sequences make up a very large portion of the genome, not a small one. They do not code for proteins, but they tell us about the structure and evolution of chromosomes. NTA swapped “large” for “small”, and that one word turned the book’s line false. Check each word of a statement against what you have read.

Option (2) The human genome contains 3164.7 million bp. — A correct statement. This is the total number of nucleotide base pairs in the human genome, about 3 × 10⁹ bp.

Option (3) Chromosome 1 has most genes (2968), and the Y has the fewest (231). — A correct statement. Chromosome 1 is the largest human chromosome and carries the most genes. The small Y chromosome carries the fewest.

Option (4) Less than 2 per cent of the genome codes for proteins. — A correct statement. Most of the human DNA does not code for any protein. The coding part is less than 2 per cent.

NCERT Extract:
Salient Features of Human Genome – …