The total number of genes in humans is far less (< 25,000) than the previous estimate (upto 1,40,000 gene). Comment.
The total number of genes is estimated at 25000 much lower than previous estimates of 140000 that had based on extrapolation from gene- rich areas as opposed to a composite of gene rich and gene poor areas.
Almost all 99.9% nucleotide bases are exactly the same in all people. Functions for over 50% discovered genes are not known yet. Scientists have identified about 1.4 million locations where single base DNA difference occur in humans. This information provides to revolutionize the processes of finding chromosomal locations which is for disease associated sequence and tracing human history.
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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 16: The total number of genes in humans is far less (< 25,000) than the previous estimate (upto 1,40,....
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