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larisa86 [58]
3 years ago
14

Which statement is true of enzymes? Choose 1 answer: (Choice A, Checked)

Biology
1 answer:
MrMuchimi3 years ago
8 0

The answer is B. Enzymes have optimum temperatures, and are very specific. If substrate concentration is 0, enzymes will not work.

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What explanation provides support for continental drift theory
attashe74 [19]

Answer:

All the continents seem to fit together like a puzzle.

Explanation:

Hope this helps!

3 0
3 years ago
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Methylation of EZH2 by PRMT1 regulates its stability and promotes breast cancer metastasis. Cell Death Differ. 2020,
vovangra [49]

Yes, it is true that Methylation of EZH2 by PRMT1 regulates its stability and promotes breast cancer metastasis.

Enhancer of zeste homolog 2 (EZH2), a key histone methyltransferase and EMT inducer, is overexpressed in diverse carcinomas, including breast cancer.

However, the molecular mechanisms of EZH2 dysregulation in cancers are still largely unknown. Here, we discover that EZH2 is asymmetrically dimethylated at R342 (meR342-EZH2) by PRMT1.

meR342-EZH2 was found to inhibit the CDK1-mediated phosphorylation of EZH2 at T345 and T487, thereby attenuating EZH2 ubiquitylation mediated by the E3 ligase TRAF6.

We also demonstrate that meR342-EZH2 resulted in a decrease in EZH2 target gene expression, but an increase in breast cancer cell EMT, invasion and metastasis.

Moreover, we confirm the positive correlations among PRMT1, meR342-EZH2 and EZH2 expression in the breast cancer tissues. Finally, we report that high expression levels of meR342-EZH2 predict a poor clinical outcome in breast cancer patients.

Our findings may provide a novel diagnostic target and promising therapeutic target for breast cancer metastasis.

Learn more about breast cancer here : brainly.com/question/6747562

#SPJ4

4 0
2 years ago
What do psychologist call a relatively permanent change in behavior or knowledge
Llana [10]

Answer:

operant conditioning

Explanation:

In operant conditioning, organisms learn to associate events that repeatedly happen together. The word "operant" should be changed to the word "classical." any relatively permanent change in behavior brought about by experience or practice.

hope it helps : )

please mark me brainliest

5 0
3 years ago
Sort the following factors as either density-dependent or density-independent.
Nadya [2.5K]

Answer:

Hello please mark as brainliest l really need

6 0
3 years ago
Another kind of mutation is genetic, and it is caused by small changes in an organism’s DNA. A change in a base pair is a mutati
Darya [45]

Answer:

Deletion sorry if i am wrong

Explanation:

5 0
2 years ago
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