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Tutor profile: Christopher C.

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Christopher C.
Bachelor's in Biology- Science Enthusiast at Heart
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Questions

Subject: Nutrition

TutorMe
Question:

What is B-12's other name, and why is it vital for DNA synthesis?

Inactive
Christopher C.
Answer:

Cyanocobalamin. It is a coenzyme that is needed for methionine synthase, an enzyme vital for proper DNA synthesis, to function. WIthout B-12, homocysteine cannot be converted into methionine, and methylation(vital to the DNA synthesis process) cannot occur.

Subject: Biology

TutorMe
Question:

How does a COVID 19 mRNA vaccine work in the body?

Inactive
Christopher C.
Answer:

The vaccine, which contains the genetic material(mRNA) that codes for the spike protein, which is the antigen of the virus, is taken up by muscle cells at the site of injection. These cells will create the spike proteins with instructions from the mRNA received. They will display the protein spikes on their outer cell membranes. Immune system cells will recognize these spikes as antigens and mount a primary response. B-cells release antibodies specific for these proteins, and some T-cells release cytokines (these will trigger inflammation at the site of injection). When the person is exposed to the real virus, their secondary immune response will kick in and mount a response that is stronger and faste rthan the first. Memory T and B cells are to thank for this phenomenon.

Subject: Anatomy

TutorMe
Question:

Phil was struck hard in the back of his head by a piece of debris resulting from a car accident, which caused a lesion in the back of his skull. He is a college football player. After recovering in the hospital from the trauma, he found that he had much less coordination, and he could not pick up on skills and movements like he used to. What structure in his brain was likely damaged, and what are its main functions?

Inactive
Christopher C.
Answer:

Paul's cerebellum was likely damaged. The cerebellum sits below the cerebrum and is responsible for coordination of the body's movements and allows for motor learning. It processes movements and makes adjustments to them, which allows for patterns to become ingrained.

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