AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a parent gets a mutation in their skin cells from over exposure to the sun it is likely that they will pass the mutated genes on to their children.
A
True
B
False
Explanation: 

Detailed explanation-1: -Damage from the sun’s ultraviolet radiation or exposure to some types of chemicals can lead to new mutations. These mutations are not passed from parents to their children.

Detailed explanation-2: -A gene change in a body’s reproductive cell (egg or sperm) that becomes incorporated into the DNA of every cell in the body of the offspring. Germline mutations are passed on from parents to offspring. Also called germline variant.

Detailed explanation-3: -Mutations can happen “at random” during your life. This may impact any future skin cells that came from that original skin cell. But that genetic change doesn’t get passed down to your child because those skin cells with the genetic mutation don’t affect your sperm or egg cells.

Detailed explanation-4: -Somatic Cells DNA mutations in somatic cells can affect an individual, but they cannot be passed on to their offspring.

Detailed explanation-5: -Acquired gene mutations For example, ultraviolet (UV) rays are clearly a major cause of melanoma. UV rays can damage the DNA in skin cells. Sometimes this damage affects certain genes that control how the cells grow and divide. If these genes no longer work properly, the affected cells may become cancer cells.

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