Meiosis And Fertilisation Flashcards
1
Q
Steps of meiosis
A
1) all of the chromosomes are copied
2) cell divides in two
3) Both cells divide one more time
Gametes - chromosomes single not paired
2
Q
Where does meiosis take place
A
Reproductive organs
3
Q
How many gametes are produced by meiosis
A
4
4
Q
Are the gametes genetically similar or different
A
Different
5
Q
What happens in sexual reproduction (gametes)
A
Male and female gametes join together (fertilisation)
6
Q
How many chromosomes after fertilisation
A
23 PAIRS
7
Q
What happens after fertilisation
A
The new cell divides by mitosis producing a clump of identical cells
8
Q
What is a clump of identical cells called
A
Embryo
9
Q
What happens as the embryo develops
A
The cells differentiate forming different types of cells
