Question

The N-terminal tale of histone H3 can be extensively modified and depending on the number location and combination of these modifications these changes may promote the formation of heterochromatin what is the result of heterochromatin formation?

A) increase in gene expression
B) Gene silencing
C) recruitment of remodeling complexes
D) displacement of his tone each one

Answer 1

Heterochromatin formation results in gene silencing by promoting the condensation of chromatin and inhibiting gene expression. The correct answer is B).

Step-by-step explanation:

Heterochromatin formation is the result of extensive modifications to the N-terminal tail of histone H3. These modifications can promote the condensation of chromatin, which leads to gene silencing. When heterochromatin is formed, the chromatin structure becomes tightly packed, inhibiting gene expression. This is achieved through the recruitment of remodeling complexes and the displacement of histone proteins. Therefore, option B) Gene silencing is the correct answer.