Q15 of 71 Page 41

How has the sequencing of human genome opened new windows for treatment of various genetic disorders. Discuss amongst your classmates.

The sequencing of human genome opened new windows for treatment of various genetic disorders because:

1. It led to better understanding of genetic disorders.


2. Diagnosis, treatment and prevention of genetic disorders are better understood.


3. Which genes is for which disease is identified.


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A single base mutation in a gene may not ‘always’ result in loss or gain of function. Do you think the statement is correct? Defend your answer.

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A low level of expression of lac operon occurs at all the time. Can you explain the logic behind this phenomenon?

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The total number of genes in humans is far less (< 25,000) than the previous estimate (up to 1,40,000 gene). Comment.

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Now, sequencing of total genomes getting is getting less expensive day by the day. Soon it may be affordable for a common man to get his genome sequenced. What in your opinion could be the advantage and disadvantage of this development?