Q.

Select the incorrect statement about the repetitive sequences in the human genome.

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a

They are thought to have no direct coding functions.

b

They shed light on chromosome structure, dynamics and evolution.

c

They are stretches of DNA sequences that are repeated many times, sometimes hundred to thousand times.

d

They make up a very small portion of the human genome.

answer is D.

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Detailed Solution

Repeated sequences make up very large portion of the human genome. Repetitive sequences are stretches of DNA sequences that are repeated many times, sometimes hundred to thousand times. They are thought to have no direct coding functions, but they shed light on chromosome structure, dynamics and evolution.

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