Topic 3 - Meiosis And Genetic Variation Flashcards
1
Q
What is a gamete?
A
A cell with half the number of chromosomes of the parent cell
2
Q
What is a diploid?
A
A cell with 46 chromosomes
3
Q
What is a haploid?
A
A cell with 23 chromosomes
4
Q
What is a zygote
A
A fertilised egg cell
5
Q
What’s an embryo
A
the early developmental stage of an animal
6
Q
What is meiosis
A
A different type of cell division which forms gametes for sexual reproduction
7
Q
Where does meiosis happen
A
Reproductive organs
8
Q
How many divisions does meiosis have
A
2
9
Q
What happens in meiosis 1
A
homologous pairs are separated halving the chromosome number
10
Q
What happens in meiosis 2
A
The sister chromatids are separated into 4 separate cells
11
Q
What is meiosis used for?
A
Producing gametes for sexual reproduction
12
Q
What is mitosis used for?
A
Growth and repair and asexual reproduction
