Question

The total number of nitrogenous bases in human genome is estimated to be about

• A. 3.5 million
• B. 35 thousand
• C. 35 million
• D. 3.1 billion

Answer 1

Answer: (D)

Genome is a complete set of genes present in a haploid set of chromosomes contributed by a parent and C-value is the haploid $(n)$ amount of DNA in a eukaryotic cell. C-value of human genome is $2.8$ picogram or $1.8\times 10^{12}$ daltons or $2.75\times 10^9$ base pairs. The total length of DNA is $94cm$, which have about $3.1$ billion bases.