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Allisa [31]
3 years ago
12

Which of the following is true about cells

Biology
1 answer:
erma4kov [3.2K]3 years ago
3 0
What are the answer choices
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<span>The answer to your question is Homo sapiens.</span>
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True false wind erosion is much more common than water erosion
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8. You have been asked to develop a safety plan
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A Safety Data Sheet refers to a detailed information document prepared by a manufacturer of  hazardous chemicals. It describes the physical and chemical properties of the product.

<h3>What is Safety Data Sheet?</h3>
  • A Safety Data Sheet refers to a detailed information document prepared by a manufacturer or importer of  hazardous chemicals.
  • Describes the physical and chemical properties of the product.
  • A safety data sheet provides comprehensive information about a chemical, including its properties physical, health, and environmental hazards; and  protective measures or safety precautions to be followed in handling, storing, or transporting materials.
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6 0
1 year ago
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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
Josh did an experiment, recording the changes in temperature in sand and water when exposed to a light
8_murik_8 [283]

ANSWER:

D

EXPLANATION:

Both of their temperatures stay about the same throughout the experiment.

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