Question

learning: chapter 03: sections 7-11
question 1
which of the following statements is most accurate?
answer
○ gene repression results in cellular differentiation.
○ gene repression results in increased stem cell divisions.
○ gene repression results in an increase in the cell’s functional capabilities.
○ gene repression results in an increase in the cell’s ability to produce different proteins.
○ i dont know yet

Explanation:

To determine the accurate statement, we analyze each option:

• Gene repression and cellular differentiation: During cellular differentiation, specific genes are repressed (and others expressed) to make cells specialized. This is a key mechanism in differentiation.
• Gene repression and stem cell divisions: Gene repression typically doesn't increase stem cell divisions; stem cell division is regulated by other factors, and repression is more about specialization, not proliferation.
• Gene repression and functional capabilities: Repressing genes usually restricts, not increases, a cell’s functional capabilities (as it turns off certain pathways/functions to specialize).
• Gene repression and protein production variety: Repressing genes reduces the cell’s ability to produce different proteins (since it turns off gene expression for some proteins, focusing on a specialized set).

So the most accurate statement is that gene repression results in cellular differentiation.

Answer:

The correct option is: "Gene repression results in cellular differentiation." (the first option among the given choices)