Meiosis

Question 1

what is the longest stage of meiosis

Answer 1

Prophase 1

Question 2

name the 5 substages of Prophase 1

Answer 2

Leptotene, Zygotene, Pachytene, Diplotene, Diakinesis

Question 3

in what meiosis Prophase 1 stage do the chromatids condense and become visible

Answer 3

Leptotene

Question 4

in what Prophase 1 substage does the homologous search begin

Answer 4

leptoene

Question 5

when does the location, size, and number of centromeres becomes specific

Answer 5

Leptotene

Question 6

when does the pairing of homologous chromosomes occur

Answer 6

Zygotene

Question 7

What is the S Complex

Answer 7

associated with the tight association of homologous chromosomes

Question 8

tight association of homologous chromosomes is called what

Answer 8

bivalent

Question 9

in what stage does the S Complex occur in

Answer 9

Zygotene

Question 10

in what Prophase 1 substage are chromosomes referred to as bivalent

Answer 10

Zygotene

Question 11

the # of bivalent = __ Number

Answer 11

Haploid

Question 12

what is the term that is for the tight association between homologous chromosomes

Answer 12

tetrad

Question 13

in what Prophase 1 substage does recombination primarily take place

Answer 13

Pachytene

Question 14

in what Prophase 1 substage does the synapnal complex begin to break down

Answer 14

Diplotene

Question 15

the Synapsal complex is when the chromosomes …

Answer 15

begin to move apart a bit

Question 16

in what Prophase 1 substage does the nuclear membrane begin to break down

Answer 16

Diakinesis

Question 17

in what Prophase 1 substage does chromosome movement towards the metaphase plate occur

Answer 17

Diakinesis

Question 18

in what Prophase 1 substage does the Spindle apparatus begin to form

Answer 18

Diakinesis

Question 19

what meiotic phase does the alignment of chromosomes at the metaphase plate take place

Answer 19

Metaphase 1

Question 20

in what meiotic phase do the chromosomes begin to pull apart

Answer 20

Anaphase 1

Question 21

late anaphase 1 is when the chromosomes __ pull apart

Answer 21

further

Question 22

chromosomal pulling apart is referred to as ___ ___ because the tetrads rep 2 homologous chromosomes seperate apart

Answer 22

reductional division

Question 23

Mitosis is an __ division

Answer 23

equational

Question 24

Meiosis is a __ division

Answer 24

reductional

Question 25

In what meiotic stage do the tetrads align at the metaphase plate

Answer 25

Metaphase 1

Question 26

In what meiotic stage does independent assortment occur

Answer 26

Metaphase 1

Question 27

reductional division occurs in

Answer 27

anaphase 1

Question 28

In what meiotic stage do chromosomes go from 2n to 1n

Answer 28

anaphase 1

Question 29

anaphase 1 is __ division

Answer 29

reductional

Question 30

anaphase 2 is __ division

Answer 30

equational

Question 31

what produces genetic variation

Answer 31

recombination/ crossing over (chiasma)

Question 32

what happens when meiosis goes awry?

Answer 32

chromosomal mutation