Meiosis Flashcards

(6 cards)

1
Q

What is meiosis?

A

meiosis is a cell division process that creates gametes (sex cells), it halves the chromosome number from diploid (2N, 46 chromosomes) to haploid (n, 23 chromosomes), which takes 23 from each parent sperm and egg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Does meiosis turn from a diploid to haploid (creating 4 different daughter cells)?

A

Meiosis starts with a diploid cell and ends with four haploid cells, all genetically different.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How doe genetic variation happen in meiosis?

A

the two main ways that genetic variation happens is crossing over and independent assortment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is crossing over?

A

happens early in meiosis, homologous chromosomes pair up and swap sections of DNA, this mixes genes from each parent creating new combinations of traits (example

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is independent assortment?

A

chromosomes line up randomly before being separated, each gamete gets a random mix of maternal and paternal chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the difference between mitosis and meiosis?

A

Mitosis is a type of cell division where a parent cell divides into two identical daughter cells. Meiosis is a process where a single cell divides twice, producing four daughter cells that contain half the original amount of genetic information.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly