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Tutor profile: Keabetswe K.

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Keabetswe K.
Tutor for five months
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Questions

Subject: Biochemistry

TutorMe
Question:

Explain how the types mutations that lead to cancer are different for a proto-oncogene and a tumor suppressor gene?

Inactive
Keabetswe K.
Answer:

A cancer-causing mutation in a proto-oncogene usually makes the cancer gene product overactive,whereas a cancer-causing mutation in a tumor-suppressor gene makes the cancer gene product nonfunctional.

Subject: Basic Chemistry

TutorMe
Question:

What type of chemical reaction occurs faster at equilibrium,the formation of products from reactants or reactants from products?

Inactive
Keabetswe K.
Answer:

At equilibrium,the forward and reverse reaction occur at the same time.

Subject: Biology

TutorMe
Question:

Humans have two types of photoreceptor cells.Name and give a brief explanation of the two types of photoreceptors.

Inactive
Keabetswe K.
Answer:

Rods-are more sensitive to light but do not distinguish colors;they enable us to see at night,but only in black and white. Cones-provide color vision,but being less sensitive and contribute very little to night vision.

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