2.3 Reproduction Flashcards
1
Q
What are all body cells, except gametes?
A
Diploid
2
Q
What are gametes?
A
Haploid sex cells, having only one of each pair of chromosomes normally in a diploid cell.
3
Q
What does diploid mean?
A
The normal number of chromosomes in a cell. In humans this is 23 pairs (46).
4
Q
What does haploid mean?
A
Half the normal number of chromosomes in a cell. In humans this is 23.
5
Q
Where are male gametes made?
A
Testes (animals) / anthers (plants)
6
Q
What are male gametes called?
A
Sperm (animals) / pollen (plants)
7
Q
Where are female gametes made?
A
Ovaries (animals) / ovaries (plants)
8
Q
What are female gametes called?
A
Eggs (animals) / ovules (plants)
9
Q
What is fertilisation?
A
The fusion of two haploid gametes to produce a diploid zygote, which divides to form an embryo.
