CELL DIVISION
CELL DIVISION AND CANCEROUS CELLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Yes, because any change to the DNA is passed on to the offspring
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Maybe. Sex cells only use half of the body’s genetic code. It might get the copy of a gene that wasn’t mutated.
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No. Only mutations that occur in the gametes (sex cells) are passed on to the offspring
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Without knowing the animal, it would be hard to tell whether or not the mutation would be passed on.
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Detailed explanation-1: -Mutations in somatic cells are called somatic mutations. Because they do not occur in cells that give rise to gametes, the mutation is not passed along to the next generation by sexual means.
Detailed explanation-2: -Germline mutations (that occur in eggs and sperm) can be passed on to offspring, while somatic mutations (that occur in body cells) are not passed on.
Detailed explanation-3: -Would a mutation in the DNA of a skin cell be passed on to an organism’s offspring? Maybe. Sex cells only use half of the body’s genetic code. It might get the copy of a gene that wasn’t mutated.
Detailed explanation-4: -For the first time, researchers have shown that mutated cells in the skin grow to form clones that compete against each other. Many mutant clones are lost from the tissue in this competition, which resembles the selection of species that occurs in evolution.
Detailed explanation-5: -Germ-line mutations occur in reproductive cells (sperm or eggs) and are passed to an organism’s offspring during sexual reproduction. Somatic mutations occur in non-reproductive cells; they are passed to daughter cells during mitosis but not to offspring during sexual reproduction.