oct 9 Flashcards
1
Q
When does crossing over occur
A
Prophase of meiosis 1
2
Q
What dictionates the relate chance of a CO
A
Physical space
3
Q
coupling heteozygote
A
dominant and reccesive genes on same chromosome
4
Q
repulsion hetereozygote
A
dominant or recessive genes not on same chromosome
5
Q
leptomnema
A
chromosome duplicated
synaptonemal comples begins to appear
6
Q
zygonema
A
pairing initiated
synaptonemal complex develops more fully
crossing over initiated
7
Q
pachynema
A
pairing is completed
chromosomes thicken
crossing over proceeds
8
Q
diplonema
A
repulsion between homologues begins
chiasmata clearly visible
crossing over at chiasmata and centromere
crossing over completed
9
Q
Diakinesis
A
Maximum chromosome thickening occurs
chiasmata dissappear
chromosomes move to equatorial plane
10
Q
map units =
A
recombinants/total
