Lecture 6 Nucleus

Question 1

Nucleus

Answer 1

Stores genetic material (DNA)
Only exists during interphase
Separated from cytoplasm by nuclear envelope

Question 2

Nuclear envelope role

Answer 2

• delimits the nuclear compartment
• separates biochemical processes in the cell

Question 3

Types of chromatin

Answer 3

Euchromatin
- the functional active part of chromatin, where DNA > RNA transcription takes place

Heterochromatin
- the functional inactive part of chromatin, non-trascribable
- constitutive (repetitive DNA)
- facultative: transcribed only in a certain development period of the body