Select the correct set from the following statements with respect to the salient features of the human genome. i. The human genome contains 3164.7 billion nucleotides. ii. The function is unknown for over 50% of the discovered gene. iii. Less than 20% of the genome code for proteins. iv. Chromosome-1 has the most genes (2968) and Y has the fewest (231). v. The total number of genes estimated is 30,000.

Question

Select the correct set from the following statements with respect to the salient features of the human genome. i. The human genome contains 3164.7 billion nucleotides. ii. The function is unknown for over 50% of the discovered gene. iii. Less than 20% of the genome code for proteins. iv. Chromosome-1 has the most genes (2968) and Y has the fewest (231). v. The total number of genes estimated is 30,000. (A) ii, iv, v (B) i, ii, iv (C) i, iii, v (D) i, iv, v

Tardigrade Admin · Accepted Answer

Some of the salient observations drawn from human genome project are as follows:
(i)The human genome contains 3164.7 million nucleotide bases.
(ii)The average gene consists of 3000 bases, but sizes vary greatly, with the largest known human gene being dystrophin at 2.4 million bases.
(iii)The total number of genes is estimated at 30,000, much lower than previous estimates of 80,000 to 1,40,000 genes. Almost all (99.9%) nucleotide bases are exactly the same in all people.
(iv)The functions are unknown for over 50% of discovered genes.