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ANTONII [103]
3 years ago
14

Why can’t pregnant women eat swordfish?

Biology
1 answer:
mrs_skeptik [129]3 years ago
8 0
Um..... because it could have high levels of mercury, an mercury consumed during pregnancy has been linked to developmental delays and brain damage
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3 years ago
What is the first part of cell theory?​
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Answer: Structure of an Animal Cell

Explanation:

The first part of the cell theory states that all living things, whether small or big, simple or complex, irrespective of species or kingdoms, are made up of either one or more than one cells. Living things or organisms that are made up of one cell are called unicellular or single-celled organisms.

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Cyanobacteria are important to the evolution and advancements of other life on earth because they
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Answer:

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15. Suppose a human blood cell containing a 0.9 percent solute concentration were put into a container of 30 percent solute solu
Vaselesa [24]

Answer:

Smaller

Explanation:

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3 years ago
Rb is an important protein for controlling cell proliferation by blocking entry into S phase. How does it exert its effect?
amid [387]

Answer:

The main function of the RB protein is to inhibit the transition from the G1 to S phase. Its activity depends on its phosphorylation state: if RB is not phosphorylated (active state), it is bound to the transcription factor E2F, preventing its translocation to the nucleus and the activation of genes necessary for DNA synthesis; and if it is phosphorylated, by cyclin-CDK complexes, E2F is released and cell proliferation occurs.

Explanation:

Retinoblastoma (Rb) was the first tumor suppressor described and, as we know today, mutations in its structure determine a large number of cancers. Structurally, we speak of a large and multifunctional protein; which is organized in different domains. The activity of this protein is regulated, mainly, by phosphorylation at multiple sites described over the years and is involved in control mechanisms of the cell cycle, apoptosis and senescence.

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3 years ago
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