Question

Study the following regarding human genome project and identify the correct statements:
I. The largest known human gene is located on X-chromosome.
II. Chromosome 1 has the lowest number of genes.
III. Less than 2 percent of the genes code for proteins.
IV. The human genome contains 3164.7 billion nucleotide bases.

• A. I and II
• B. II and III
• C. I and III
• D. II and IV

Hint:

Majority of human DNA is non-coding; largest gene dystrophin is on X chromosome.

Answer 1

The Correct Option is C

- The largest known human gene, dystrophin, is located on the X chromosome (Statement I is true).
- Chromosome 1 actually has the highest number of genes, so II is false.
- Less than 2% of the human genome codes for proteins, rest is non-coding DNA (Statement III is true).
- The human genome size is approximately 3.2 billion base pairs, so IV is incorrect.

Thus, correct statements are I and III.