Question

Other than DNA methylation, how can gene expression be controlled at the DNA level?

1) Histone modification
2) RNA interference
3) DNA packaging
4)NA replication

Answer 1

Other than DNA methylation, gene expression at the DNA level can be controlled through processes like histone modification, RNA interference, and DNA packaging.

Step-by-step explanation:

Gene expression at the DNA level can be controlled through several mechanisms other than DNA methylation.

1. Histone modification: Chemical modifications to histone proteins can influence the packaging state of DNA and affect gene expression.
2. RNA interference: Small RNA molecules can bind to mRNA molecules and prevent their translation into proteins, effectively controlling gene expression.
3. DNA packaging: The way DNA is packaged around histone proteins can impact gene accessibility and expression.