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Eddi Din [679]
3 years ago
5

Epigenetics refers to a special kind of hereditary mechanism. Epigenetic changes do not change the DNA nucleotide sequence, yet

their effect on gene expression can last for several generations. In one surprising study, it was found that the grandsons of men who suffered a famine were less likely to die of cardiovascular disease. The experience of famine made some cardio-protective change in the sperm of those grandfathers that was passed on. What type of change was likely responsible?
A. histone acetylation or DNA methylation
B. Phosphatase levels
C. ubiquitin tagging
Biology
1 answer:
Greeley [361]3 years ago
8 0

<u>Answer:</u>

The type of change that was responsible was “histone acetylation or DNA methylation”.

<u>Explanation:</u>

  • Histone acetylation is the process that involves the epigenetic adjustments that functions in the transcription process while regulating DNA.
  • Histone acetylation or DNA methylation is the major component of the gene regulation while passing from one generation to another.
  • The Acetyl groups are hooked up to lysine’s in histone tails so their charges play a vital role to avoid the histone tail to bind with the other molecules.
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What rule of magnetism is illustrated by the lines of the iron filings with unlike poles?
Debora [2.8K]

Answer:

The rule of magnetism illustrated is the field lines are more concentrated at the poles and also about the direction of magnetic field.

Explanation:

  • Every magnet has two pole, north pole and south pole. The like poles repel each other and unlike poles attract each other.
  • The direction of magnetic field is from north to south that can be seen by the iron filling experiment.
  • When the iron fillings are kept near the bar magnet, we observe that most of the fillings are attached to either poles.
  • It is due to the fact that the concentration of magnetic field is highest at the poles.
6 0
3 years ago
_ oil is a non-animal-based source of saturated fat that has numerous health benefits, but also limited research on its long-ter
vivado [14]

Answer:

Palm and coconut oil

Explanation:

These oils have been controversial for many years since they are more than 80% saturated fats. This is more than or similar to butter and lard. There are conflicting research that if does lower bad cholesterol but research continues and case studies continue to be reported.

6 0
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Which statement best explains how enzymes speed up chemical reactions?
Leni [432]
The answer would be D.

Enzymes activity increases as the temperature increase so, therefore the answer would be D.
but to be fair they all would work.
7 0
3 years ago
The tube that connects the throat and bronchi? <br><br> helppp
lapo4ka [179]

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trachea

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Represents the presence of the<br> rhesus protein on blood.
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AlohaS4

Answer & Explanation:

( Rh Factor ) represents the presence of the Rhesus protein in the blood.

( Rh+ ) blood contains the rhesus protein.

( Rh- ) blood does not contain the rhesus protein.

( Type O ) blood is the universal donor.

( Type AB ) blood is the universal recipient.

( Rh+ ) blood can receive Rh+ or Rh- blood.

( Rh- ) blood can receive Rh- blood.

Hope you found this helpful! <3

<em>~Aloha</em>

<em />

<em>Btw: This contains the full Edge question. So, if you're using Edge, just click "done" for each part of the question and answer it. :)</em>

6 0
3 years ago
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