4.1.2.1 Chromosomes Flashcards
1
Q
What does the nucleus of a cell contain?
A
The nucleus of a cell contains chromosomes made of coiled DNA molecules - are genetic information
2
Q
What does each chromosome contain?
A
A large number of genes
3
Q
In body cells how are chromosomes normally found?
A
In pairs
4
Q
How many chromosomes do normal cells contain?
A
23 pairs
5
Q
What can be used to help develop explanations on how cells divide?
A
Models and analogies can be used to develop explanations on how cells divide
6
Q
How many chromosomes do gametes contain?
A
Half a set of chromosomes as they combine during fertilisation
7
Q
What substances do cells need to grow and divide?
A
- Oxygen
- Water
- Glucose
- Amino acids/protein
