Cell Division + Chromosomes Flashcards
1
Q
What is the difference between growth and development?
A
- Growth is the increase in size.
- Development is when cells differentiate into specialised cells.
2
Q
Why do cells need to reproduce?
A
So an organism can grow and repair.
3
Q
What are sperm and egg cells called? And what is the name of all the other cells?
A
- Gametes
- Somatic cells
4
Q
What is the process of reproduction for somatic cells called?
A
Mitosis
5
Q
What is a chromosome?
A
A long, linear strand of DNA
6
Q
Where are the chromosomes located in the cell?
A
The nucleus.
7
Q
How many chromosomes are there in a somatic cell?
A
23 pairs of chromosomes (totalling 46)
8
Q
What happens to the chromosomes when a cell is dividing?
A
Chromosomes replicate and condense into a more compact form. Once replicated, it is known as a sister chromatid.
9
Q
What is the bit that links a chromatid?
A
A centromere.
