meiosis Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

use of meiosis

A

to produce gametes because products are genetically different

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

meiosis 1

A

PMATC
diploid parent cell divides to make two haploid daughter cells each with 1 chromosome set (consisting of two chromatids in each chromosomes)
chromosomes replicate before meiosis 1

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

meiosis 2

A

chromatids split to make 4 haploid nuclei (each chromosome consists of one chromatid)

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

how meiosis increases genetic diversity

A

crossing over
independent assortment

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

independent assortment

A

random alignment of homologous pairs on the equator in metaphase 1 of meiosis

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

crossing over

A

during prophase 1 of meiosis
non sister chromatids of paired chromosomes cross over at chiasmata and break and re-join, swapping alleles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

monosomy

A

tuners syndrome
missing a copy of a chromosome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

trisomy

A

downs syndrome
extra copy of a chromosome

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