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2 years ago

7) Which of the following is true about p53?

Biology

1 answer:

Kitty [74]2 years ago

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Answer:

D. All of the above

Explanation:

P53 is a tumor protein. It is often referred to as the "guardian of the genome". It can stop the cell from growing, repairs DNA and controls cell death, which is called apoptosis. As the cell is cycle goes on, p53 stops the growth of the cell when there is an error or damage in the DNA. This action prevents the defective cell from replicating. The p53 then signals the production of proteins that repair DNA. If the DNA is not fixable, it programs apoptisis.

If by some chance that the p53 gene are mutated, then it cannot do those functions, which may result in cancer or the uncontrolled replication of defective cells.

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The insect vectors have six legs and include ticks, mosquitoes, and lice. group of answer choices true false

Ronch [10]

The statement "The insect vectors have six legs and include ticks, mosquitoes, and lice" is True.

Vectors are living organisms which can transfer infectious pathogens among humans and also from animals to humans.

Insect vectors include the bloodsucking insects, which take-in the disease-causing microorganisms (pathogens) during a blood meal from an infected host (human or animal) and transfer it to a new host afterwards.

Oftentimes, when a vector turns infectious, it is competent enough to transmit the pathogen for the rest of its life during every successive bite or blood meal.

Mosquitoes are vectors of Malaria, tick-borne encephalitis is transmitted by ticks whereas Typhus is transmitted by lice.

To learn more about pathogens here

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1 year ago

Assuming this land was once a farmer’s field with previously established vegetation, which process does this photograph best rep

Greeley [361]

The right answer for the question that is being asked and shown above is that: "Secondary Succession" Assuming this land was once a farmer’s field with previously established vegetation, the process that does this photograph best represent is secondary succession.

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2 years ago

The compound sodium chloride is formed by which kind of bond? Covalent bond ionic bond hydrogen bond sodium bond

ehidna [41]

Answer: Ionic bond

Explanation:

An ionic bond is a type of a chemical bond formed by the complete transfer of electrons from one atom to another atom i.e one of the atoms loses its electrons and the other gains it. This results in the formation of 2 oppositely charged ions.
In sodium chloride, sodium loses one electron from its outermost shell (valence shell) whereas chloride gains it. Due to this sodium gains, a net positive charge and chloride gain a net negative charge.
So, due to the complete transfer of electrons that takes place from sodium to chloride, the compound generated (Sodium chloride) has an ionic bond.

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3 years ago

A student observed cells from an onion root tip in a microscope. The diagram shows her observation. What was happening in the ce

d1i1m1o1n [39]

Answer:

Cell Division!

Explanation:

What is being witnessed is mitosis. That includes your general interphase, anaphase, telophase, metaphase, cytokinesis, etc. These are all part of cell division.

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2 years ago

What is an example of a prokaryotic organism? BACTERIA ALGAE MUSHROOM

Papessa [141]

Answer:

the example of prokaryotic organism is bacteria

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2 years ago

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