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vredina [299]
3 years ago
6

Describe 2 way cancer might arise from problems with the cell cycle

Biology
1 answer:
nikdorinn [45]3 years ago
7 0

Answer: First, p53 triggers production of Cdk inhibitor proteins, pausing the cell cycle in G1 to allow time for repairs. ... In cancer cells, p53 is often missing, nonfunctional, or less active than normal. For example, many cancerous tumors have a mutant form of p53 that can no longer bind DNA.

Explanation:

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3 years ago
Regarding the "East Side Story" hypothesis, what would paleoanthropologists need to show that it was false?
ANEK [815]

Answer:

Evidence of fossil apes and hominids in both East and West of the great rift valley

Explanation:

<em>The East Side Story hypothesis opined that a tectonic plate movement created a seismic split in the earth, thus deepened the rift valley and created a geographical barrier between the east and the west of the great rift valley. The barrier created a kind of geographical isolation between the ancestors of hominids, dividing them into two with each population taking different evolutionary paths. </em>

<em>Thereafter, the ancestors in the western side of the rift valley evolved into the chimpanzee's family while those in the eastern side ultimately evolved into humans. </em>

<u>Thus, providing the fossils of apes and that of hominids in both East and West sides of the great rift valley will render the hypothesis invalid.</u>

5 0
3 years ago
PLEASEEE HELPPP MEEEEE!!!!
Gre4nikov [31]

Im honestly not sure but id say A: ARTIFICIAL SELECTION........ hope i helped.

8 0
3 years ago
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