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densk [106]
4 years ago
15

Which changes take place in the immune system of a person who is infected with hiv, and how might that infection develop into ai

ds
Biology
1 answer:
solniwko [45]4 years ago
6 0
Well a person with HIV would only have AIDS if he/she has really low number of CD4 cells if this is the case that is when doctors would diagnose that person with AIDS. Hope I helped
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Suggest an intracellular regulatory molecule (from your text) that growth factors might stimulate to control cell division. Plea
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Answer:

E2F transcription factors  

Explanation:

The E2F transcription factors (TFs) encode intracellular factors associated with the control of the cell cycle. E2F are TFs that bind to promoter consensus sequences in order to activate transcription. These TFs control the expression of target genes involved in cell proliferation including, among others, genes for DNA replication and mitotic activation. Moreover, the E2F proteins also may act as a link between cell fate and the cell cycle. The retinoblastoma (Rb) is a protein that modulates the activity of the E2F family of TFs, and it has been shown that the Rb/E2F pathway is a key molecular mechanism associated with cell proliferation.

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3 years ago
The theory of evolution that states that a species evolved in spurts of rapid change and then goes through periods of no change
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I think Punctuated Equallibruim is your answer
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Vladimir79 [104]

Out of the following choices given;

A) II only

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The answer is B. Cells spend most of their life cycle in the interphase stage.  It is during this stage that the cells prepare itself for mitosis. Interphase of a cell cycle is divided into the G1, S, and G2 stages. The DNA duplicates in the S phase while growth of the cell occurs in the G1 and G2 stages.


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Help with science plz!!! Giving brainlist :D
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I believe the first answer is 140 w. The second is elastic potential energy.
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Which term correctly isentifies the part of rge dermal (skin) cell
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