DNA

Question 1

What is DNA methylation

Answer 1

the biological process by which methyl groups are added to the DNA molecule.

it is an epigenetic mechanism used by cells to control gene expression

Question 2

What is a histone

Answer 2

Basic protein that associates with DNA in the nucleus and helps condense it into chromatin

Question 3

what is a chromatin

Answer 3

A mix of DNA and proteins in a chromosome

Question 4

Shape of DNA

Answer 4

double helix

Question 5

what are the 4 nitrogen bases?

and in what ways will they bond?

Answer 5

Adenine (A)
Thymine (T)
Cytosine (C)
Guanine (G)

Adenine ——–> Thymine
Gunine ———-> Cytosine

Question 6

Describe DNA replication

Answer 6

DNA unzips
DNA replication
Proof reading of DNA

Question 7

What takes DNA code from nucleus to ribosome

why is it necessary for this role

Answer 7

Messenger RNA (mRNA

Because the information in DNA can not be decoded directly into proteins. it is first transcribed or copied

Question 8

What does mRNA stand for

Answer 8

Messenger RNA

Question 9

What does DNA stand for

Answer 9

deoxyribonucleic acid