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Tomtit [17]
4 years ago
6

Marina Melixetian and her colleagues suppressed the expression of Geminin protein in human cells by treating the cells with smal

l interfering RNAs (siRNAs) complementary to Geminin messenger RNA. Forty‑eight hours after treatment with siRNA, the Geminin‑depleted cells were enlarged and contained a single giant nucleus. Analysis of DNA content showed that many of these Geminin‑depleted cells were 4n or greater.
Explain these results.
Biology
1 answer:
STatiana [176]4 years ago
4 0

Answer:

Re-replication is allowed on geminin depleted cells

Explanation:

The depletion of the geminin gene by the siRNA leads to re-replication of portions of the genome. This is due to the protein Geminin be responsible to inhibit the replication factor cdt1 and therefore one replication round is allowed in wild type cells at the S phase. Therefore, Geminin-depleted cells will re-replicate their genome causing the enlargement of the nucleus.

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If the T m for a particular amino acid is 120 mg/100 ml and the concentration of that amino acid in the blood is 230 mg/100 ml,
IrinaK [193]

Answer:

Option D, appear in the urine

Explanation:

It is mentioned in the question that Tm for a particular amino acid is 120 mg/100 ml , but the concentration of amino acid in blood is 230 mg/100 ml. Thus, there is an excess of amino acid in blood. The excess amino acid is drained into kidney during blood purification which ultimately appear in the urine.

Thus, option D is correct

3 0
3 years ago
What is the maximum interval for pausing chest compressions?
Musya8 [376]

Answer;

10 seconds

The maximum interval for pausing chest compressions is 10 seconds.


Explanation;

Compressions should be done at a rate of 100 to 120 compressions per minute at a depth of about 1.5 inches for infants, about 2 inches for children and at least 2 inches but no greater than 2.4 inches for adolescents.

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4 years ago
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The cancer has not invaded other tissues is the conclusion which can be made if the cell margins of a biopsy are clear when observed under a microscope in this scenario.

<h3>What is Biopsy?</h3>

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The microscope function is to enlarge the objects which are positioned on the objective lens thereby making it possible for them to be seen more clearly and accurately.

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Read more about Biopsy here brainly.com/question/14583794

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It has a job similar to a police officer who allows select people to enter and leave a crime scene.
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