Homework Answers
Ultraviolet rays are one of the ionizable radiation that cause the damage in DNA. Ultraviolet rays cause CC to TT mutation along with G to T , transversion, that causes mutation in the DNA.
a. There are recovery mechanism like photo repair mechanism and SOS repair mechanism that repair the damage caused by UV rays in bacteria but as these mutation are heritable, these are not repaired by recovery mechanism . Therefore, after the UV exposure, we expect mutation from UV rays to be present in organism
b. Yes, the daughter cell have same heritable mutation to be inherit because these mutation are germline that are present in the reproductive cells that transmit genetic information from one generation to another.
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