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qaws [65]
3 years ago
12

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. Once a virus gains entry to the body

, it invades a host cell in order to
Biology
1 answer:
ivann1987 [24]3 years ago
4 0

Answer: Use the host cells biosynthetic machinery for its own growth and energy production.

Explanation:

Viruses are considered non-living because they lack cells to produce their own food and cannot grow or live on their own. Once they invade their host, they use its biosynthetic machinery for survival.

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The role that p53 protein plays in suppressing inappropriate progression through the cell cycle depends on all of the following
Alex73 [517]

Options are not provided in the question. The complete question is as following:

The role that p53 protein plays in suppressing inappropriate progression through the cell cycle depends on all of the following EXCEPT _______.

A) p53 indirectly blocks G1 to S transition in the cell cycle

B) p53 activates transcription of WAF1

C) p53 stability increases in the presence of unrepaired DNA lesions

D) the ability of p53 to bind DNA lesions

Answer: D) the ability of p53 to bind DNA lesions

Explanation:

The activities of the protein p53 are dependent on its binding DNA. Specific post-translational modifications to the p53 protein are important for efficient sequence-specific binding and transcription activities. Non-sequence-specific DNA binding can involve a broad range of p53 proteins and predominate as more serious DNA damage or greater induction of p53 protein. P53 Protein is not strictly essential for sensing and repairing DNA damage. Alternatively, p53 protein can control an apoptosis checkpoint by competing with DNA repair proteins for non-sequence-specific binding in the DNA duplex to exposed single-stranded regions.

Hence, while suppresing inappropriate progression through the cell cycle protein p53 does not bind to DNA lesions.

Hence, the correct option is D.

5 0
4 years ago
Why would oceanic crust subduct underneath continental crust
Archy [21]
The process by which the oceanic crust<span> is pulled </span>under<span> the </span>continental crust<span> is called </span>subduction<span> and the zone at which this occurs at the plate boundaries is called the </span>subduction<span> zone.</span>
6 0
4 years ago
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How did Egypt’s natural boarders protect the country from invaders
cestrela7 [59]

Answer:

Egypt had amazing geographical features that kept invaders out. The Mediterranean sea is crucial under that topic due to how much it helped them with invaders and unwanted species.

3 0
3 years ago
The relative effectiveness of different wavelength of light in photosynthesis is demonstrated by:
Firlakuza [10]

Answer:

D. An action spectrum

8 0
3 years ago
Eukaryotic cells have:<br><br> Prokaryotic cells have:
rosijanka [135]

Answer:

Eukaryotic cells have: nucleus

Prokaryotic cells have: no nucleus

5 0
3 years ago
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