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fgiga [73]
3 years ago
8

GIVING OUT BRAINLIEST

Biology
1 answer:
Slav-nsk [51]3 years ago
3 0
Probably A the average amount of rain
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If normal cells are compared to cancerous cells, there will be a _________ (higher or lower) mitotic index in cancerous cells.
laiz [17]

higher. cancerous cells have a higher mitotic index than regular cells because the cells are constantly dying. hope this helps :)

5 0
3 years ago
Chromatin can be altered in a number of ways, such as histone modification and DNA methylation. When are such alterations consid
Ratling [72]

Epigenetic changes are those which do not involve alterations in the DNA sequence. These are caused due to interaction of the genome with the environment.

<h3>When are alterations epigenetic?</h3>
  • Epigenetic modifications or tags include DNA methylation and histone modification.
  • These changes alter DNA accessibility and chromatin structure thus regulating gene expression.
  • These are the reversible, heritable changes which do not change your DNA sequence, but they can change how your body reads a DNA sequence.
  • These are necessary for the normal development of organisms.
  • Stable, long-term epigenetic modifications involve DNA methylation.
  • Flexible, short-term changes involve histone modifications, such as methylation and acetylation.

Learn more about epigenetic changes here:

brainly.com/question/25660175

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6 0
1 year ago
Molecular clocks are models that use mutation rates in dna to measure evolutionary time. true or false
Alexandra [31]
The statement is true.
3 0
3 years ago
Gene expression in prokaryotes is regulated at which stage?
iris [78.8K]
Gene expression in prokaryotes can be regulated at multiple stages including transcriptional and co-translational. Operons respond routinely to the presence of specific metabolites and change the availability of activators and repressors while speific end products of biosynthetic pathways can regulate the translatability of mRNAs for new proteins.
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3 years ago
Blood pressure is greatly effected by the volume of blood contained in the closed circulatory system of vertebrates. blood volum
Tems11 [23]

The right answer is the kidney will regulate the blood pressure by the renin angiotensin aldosterone system.

The kidney plays a role of selective filtering of the blood. It allows the blood to get rid of its waste. But it also removes water and mineral salts that are in excess.

But the kidney also plays a dynamic role in increasing the pressure, by means of a system called "renin-angiotensin system" which is one of the most powerful natural hypertensives available to the body. Thanks to an enzyme he makes, renin, the kidney will turn a normal blood protein, angiotensinogen, into angiotensin, which causes the vessels in the body to contract and therefore increase blood pressure. This effect is manifested permanently in a disease which is the stenosis of the renal artery, that is to say the permanent narrowing of the caliber of this artery. The kidney, believing that the blood pressure decreases because of this narrowing, will permanently produce renin, which will cause an immediate increase in blood pressure.

4 0
3 years ago
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