UV radiation can directly cause the DNA within cells to mutate, which may eventually lead to the formation of cancer. Which of the following best describe mechanisms for how UV radiation may lead to cancer? Choose 2 answers: (Choice A) UV radiation may cause negative regulators (tumor suppressors) to be under-expressed. (Choice B) UV radiation may cause positive regulators (oncogenic) to be over-expressed. (Choice C) UV radiation may cause cells to complete cytokinesis after M phase. (Choice D) UV radiation may force cells to go through specific checkpoints in the cell cycle.
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Biology, 22.06.2019 07:40
Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one
Answers: 1
Biology, 22.06.2019 15:30
Which of these would most likely be a stimulus that would cause the body to initiate feedback mechanisms a.) normal body temperature in an arctic environment b.) normal boy temperature in a tropical environment c.)light physical activity d.)low blood sugar
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Biology, 22.06.2019 16:00
Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems
Answers: 1
UV radiation can directly cause the DNA within cells to mutate, which may eventually lead to the for...
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