A) 3.5 million
B) 35 thousand
C) 35 million
D) 3.1 billion
Correct Answer: D
Solution :
Each region of DNA that codes for a single RNA or protein is called a gene and the entire set of genes in a cell, organelle or virus form its genome. Human genome project, launched in 1990 is a world wide effort to map to positions and to sequence all the DNA base pairs of the human genome, which are 3 billion 3 x 109 base pairs. So, the option d is nearest.
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