Question

Which out of the following statements is true about the human genome?

(a) The human genome is believed to contain approximately 50,000 protein coding genes

(b) All non-protein coding sequences in the genome are believed to be non-functional DNA

(c) About 1.6% of the human genome encodes protein sequences

(d) Intros are the sections of protein coding genes that actually encode amino acid sequences

The question was asked by my school principal while I was bunking the class.

Question is taken from Chromosomal Elements in section Genes and Chromosomes of Biochemistry

Answer 1

Right option is (c) About 1.6% of the human genome encodes protein sequences

To explain I would say: The actual protein coding sequences (excluding introns) constitute only 1.6% of the total DNA.