meiosis Flashcards
understand the cell cycle, division and process of mitosis (7 cards)
1
Q
how are sex cells different to the other cells in the body?
A
they only have half of the total amount of human genetic information.
(23 chromosomes)
2
Q
what is meiosis?
A
meiosis is the cell division to produce new sex cells .
3
Q
how many cycles are there in meiosis?
A
2 cycles, producing 4 daughter cells.
4
Q
what is special about the daughter cells in mitosis?
A
they are genetically unique to each other and the parent cell.
5
Q
how many chromosomes does a sex cell need?
A
23, so when they meet up to fertilise the new organism gets 46 chromosomes in total.
6
Q
what happens in interphase?
A
the parent cell copies its DNA, converts single stranded chromosomes into double stranded.
7
Q
prophase 1
A
DNA condenses into chromosomes, join together in homologous pairs.
