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Question

X-rays induce mutagenic changes mainly by _____________.

A
Transitions
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B
Tran versions
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C
Frame-shifting
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D
Chromosomal breakage
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Solution

The correct option is D Chromosomal breakage
The first induced mutations were created by treating Drosophila with X-rays. Using this approach Mueller to induce lethal mutations. In addition to X-rays, other types of radiation treatments that have proven useful include gamma rays and fast neutron bombardment. These treatments can induce point mutations (changes in a single nucleotide) or deletions (loss of a chromosomal segment). The deletion leads to chromosomal breakage.
So, the correct option is 'D'.

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BIOLOGY
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