SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It would increase cell specialization in organs.
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It would change the sequence of DNA nucleotides in affected cells.
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It would produce new nucleotides for DNA molecules.
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It would cause an increase in red blood cell production.
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Detailed explanation-1: -Ionizing radiation directly affects DNA structure by inducing DNA breaks, particularly, DSBs. Secondary effects are the generation of reactive oxygen species (ROS) that oxidize proteins and lipids, and also induce several damages to DNA, like generation of abasic sites and single strand breaks (SSB).
Detailed explanation-2: -It is well known that high doses of ionizing radiation can lead to various harmful biological and health effects, such as cell mutation, cell killing (necrosis and apoptosis), skin burns, hair loss, birth defects, illness, cancer, and death.
Detailed explanation-3: -When ionising radiation acts upon gonads or germ cells, it may cause damage to the genetic material (mutations) which can lead to genetically induced diseases (hereditary defects). These may result in malformations, metabolic disorders, immune deficiencies etc.