Explain its normal role and why scientists would regard it as the "guardian of the genome."

1 answer:

5 0

The gene p53, also called the guardian of the genome is located on the 17th chromosome in human genomes.
It was given this alternative name because it has a role in response to damage of DNA molecule and in preventing cancer.
The protein product of this gene stops the replication of damaged DNA, activates proteins that repair the DNA damage and if the reparation proteins fail to fix the damage it activates the process of apoptosis or so-called cell death in order to prevent the damaged cell to proliferate and potentially develop into a tumor.

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Why do scientists consider vestigial structures (like a human appendix) evidence for evolution?

qaws [65]

Answer:

vestigial structures are considered evidence because scientists believe they are structures that were once used by a species ancestors but are not longer needed. these structures do not impair the organism in any way, so there is no need for evolution to get rid of them. for example, the human appendix is considered a vestigial structure.

Explanation:

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3 years ago

Calculate the cardiac output if heart rate (HR) is 90 beats per minute, stroke volume (SV) is 110 ml/beat, end diastolic volume

Yakvenalex [24]

ANSWER: None of the above options are correct.

Cardiac Output(CO) = Stroke Volume(SV) × Heart Rate(HR)

Therefore where HR= 90bpm and SV= 110ml/min,

CO = 90 × 110 = 9900ml/min or 9.9L/min.

EXPLANATION:

CARDIAC OUTPUT is the volume of blood being pumped by the heart into the systemic circulation per minute.

Cardiac output is the product of two variables, stroke volume and heart rate.

STROKE VOLUME is the amount of blood pumped out by the left ventricle in each contraction.

HEART RATE is the count of the number of times the heart beats per minute.

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3 years ago

The digestion of food molecules is a what type of process?

tatyana61 [14]

Answer:

Explanation:

Catabolic

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The nurse is preparing a client for discharge who has undergone percutaneous needle aspiration of a peritonsillar abscess. which

Ivenika [448]

A peritonsillar abscess is a bacterial infection that is caused by untreated tonsillitis and strep throat. Complications can be infected lungs causing airway obstruction. Antibiotics are the treatment for this condition or the pus may be drain such as that of a Percutaneous Needle Aspiration thus the nurse should be able to impart to the client to follow the medication prescribed especially antibiotics like if it is good for 7 days to finish it and if in case complications would arise, the patient should consult medical help.

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What experimental evidence led to the development of this

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A few of the positive particles aimed at a gold foil.

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