What type of mutation is likely to occur in skin cells due to prolonged sun exposure? Group of answer choices Duplication of organs Germline mutation Inherited mutation Somatic mutation
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Any permanent change to the structure of DNA is considered a mutation. A somatic cell mutation affects only the individual organism, while a germline mutation is passed onto the next generation. For example, excessive amount of exposure to UV rays can lead to skin cancer. Although this type of mutation occurs in the somatic cells, every individual has different susceptibility to skin cell mutations upon exposure to UV rays. The susceptibility is located in the germ cell and is heritable. The individuals who choose to overexpose themselves to UV rays increase their likelihood of obtaining undesirable mutations in their somatic cells. Unlike sun tanning, there are other activities we engage in that can lead to germline mutations. These activities should be avoided if possible as they lead to heritable mutations and cancer. a. Using 200 words or less, identify one human activity that can lead to a heritable mutation.
Sri K.
Some Sources of Mutation 1. Prolonged skin exposure to UV rays 2. Mother is a carrier of a sex-linked trait 3. Homologous chromosomes fail to separate during meiosis 4. DNA polymerase adds incorrect nucleotide during interphase of mitosis Identify whether the sources of mutations listed above are somatic cell mutation or germ line mutation. Somatic cell mutation Germ line mutation Types of Mutation: Answer Answer Answer Answer Sources of Mutation: a b c d
Adi S.
A mutation that can be inherited by offspring would result from random breakage of chromosomes in the nucleus of liver cells a base substitution in gametes during meiosis abnormal lung cells produced by toxins in smoke ultraviolet radiation damage to skin cells
Madhur L.
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