Meiosis - General Flashcards
1
Q
What happens to the number of chromosomes in meiosis?
A
- the number of chromosomes is reduced from two sets (2n) in the parent cell
- to one set (n) in each of the daughter cells formed
- i.e. the number of chromosome is halved
1
Q
What is meiosis?
A
- cell division that takes place in the reproductive organs of both plants and animals
- to produce gametes in animals
- and spores in plants
2
Q
What are the characteristics of the gametes/spores formed in meiosis?
A
- they are called haploid
- as they only have one set of chromosomes
- i.e. one chromosome from each homologous pair
3
Q
Where does meiosis take place in animals?
A
- the testes and ovaries
4
Q
What is the formation of sperm cells in the testes called?
A
- spermatogenesis
5
Q
What is the formation of egg cells in the ovaries called?
A
- oogenesis
6
Q
Where does meiosis take place in plants?
A
- in sporangia
7
Q
What are microsporangia?
A
- the pollen sacs in the male anthers
8
Q
What are megasporangia?
A
- the ovules in the female ovaries
