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Blizzard [7]
3 years ago
5

Which of the following descriptions is consistent with the behavior of a cell that lacks a protein required for a checkpoint mec

hanism that operates in G2? The cell would be unable to enter M phase. The cell would be unable to enter G2. The cell would pass through M phase more slowly than normal cells. Nothing would change. The cell would enter M phase under conditions when normal cells would not.
Biology
1 answer:
grandymaker [24]3 years ago
6 0

Answer:

The cell would enter M phase under conditions when normal cells would not.

Explanation:

The G2 checkpoint provides an opportunity for repair and stopping the proliferation of damaged cells as it prevents cells from entering mitosis when DNA is damaged. The G2 checkpoint ensures all of the chromosomes have been replicated. Also, it ensures that the replicated DNA is not damaged before the cell enters mitosis. <u>The cell would enter M phase under conditions when normal cells would not.</u>

It is also an important focus in understanding the molecular causes of cancer.

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Wann erfolgte der Wurzel der Pflanzen
miv72 [106K]

Answer:

Vor 416 bis 360 Millionen Jahren

Wurzeln waren eine frühe Entwicklung im Pflanzenleben und entwickelten sich an Land während der Devon-Zeit vor 416 bis 360 Millionen Jahren (Gensel et al., 2001; Raven und Edwards, 2001; Boyce, 2005; Kenrick, 2013).

Explanation:

Entschuldigung, wenn das nicht geholfen hat

5 0
3 years ago
Assume that you have an illuminated suspension of Chlorella cells carrying out photosynthesis in the presence of 0.1% carbon dio
goldenfox [79]

Answer:

a. PGA down, RuBP up

Explanation:

RuBP, also known as Ribulose-1,5-bisphosphate is a molecule that assist in he fixation of carbon dioxide in the Calvin Cycle or light independent reaction of photosynthesis.

RuBP is combined with carbon dioxide using the enzyme known as rubisco to form an short-lived intermediate product which divides to form two 3-carbon molecule structure known as 3-phosphoglycerate.

<em>If the concentration of carbon dioxide is suddenly reduced, it thus means that the rate of production of 3-phosphoglycerate will reduce as carbon dioxide becomes a limiting factor. Hence, 3-phosphoglycerate's  concentration will reduce while more RuBP will become available as a result.</em>

The correct option is a.

3 0
3 years ago
One of the primary functions of rna molecules is to _____.
Dmitry [639]
One of the primary functions of rna molecules is to function in the synthesis of proteins.
6 0
3 years ago
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What do comets and asteroids have in common?
Karolina [17]

Answer:

They are both celestial bodies orbiting our Sun, and they both can have unusual orbits, sometimes straying close to Earth or the other planets

8 0
3 years ago
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The secretions of the adrenal medulla act to supplement the effects of ________.
Nutka1998 [239]

Answer:

sympathetic stimulation

Explanation:

Under stress or emergency conditions, the preganglionic neurons of the sympathetic division release acetylcholine. Acetylcholine stimulates secretion and release of epinephrine and norepinephrine from the adrenal medulla. These hormones enhance the effects of the sympathetic division of the autonomic nervous system (ANS) during stress. Epinephrine and norepinephrine augment the fight-or-flight response as they increase the heart rate and force of contraction, the output of the heart, and blood pressure. They also increase blood supply to the heart, liver, and adipose tissue. The airways to lungs become dilated and there are increase blood levels of glucose and fatty acids.

7 0
4 years ago
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