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Q.

Point mutation is

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a

A mutation that arises due to loss (deletions) or gain (insertion/duplication) of a segment of DNA.

b

A mutation that arises due to change in a single base pair of DNA due to substitution or deletion or addition.

c

A mutation that arises due to change in the number of chromosomes from its original chromosome number.

d

A mutation that arises due to increase in the ploidy of organisms.

answer is D.

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Detailed Solution

A mutation that arises due to change in a single base pair of DNA is called point mutation. Sickle celled anemia is a classic example of point mutation.

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Point mutation is