Chapter 13 - Section 3

Question 1

what two sets of cell division does meiosis take place

Answer 1

meiosis 1 and meiosis 2

Question 2

cell division in meiosis results in how many daughter cells?

Answer 2

four

Question 3

meiosis 1

Answer 3

reductional division - homologs pair up and separate, resulting in two haploid daughter cells with replicated chromosomes.

Question 4

meiosis 2

Answer 4

equational division - sister chromatids separate

Question 5

what is the result of meiosis 1 and 2

Answer 5

four haploid daughter cells with unreplicated chromosomes

Question 6

meiosis 1 is preceded by what?

Answer 6

interphase

Question 7

division in meiosis 1 occurs in which four phases

Answer 7

prophase 1
metaphase 1
anaphase 1
telophase 1 and cytokinesis

Question 8

prophase 1

Answer 8

this occupies for then 90% of time required for meiosis. the chromosomes begin to condense.

Question 9

synapsis

Answer 9

homologous chromosomes loosely pair up, aligned gene by gene

Question 10

crossing over

Answer 10

non sister chromatids exchange DNA segments

Question 11

chiasmata

Answer 11

x shaped regions where crossing over happens

Question 12

metaphase 1

Answer 12

tetrads line up at the metaphase plate with one chromosome facing each pole. microtubules attach to the kinetochore of chromosomes.

Question 13

anaphase 1

Answer 13

pairs of homologous chromosomes separate.
one chromosome moves toward each pole, guided by the spindle apparatus

Question 14

telophase and cytokinesis

Answer 14

each half of the cell has a haploid set of chromosomes, each chromosome still consists of two sister chromatids, and cytokinesis is simultaneous which forms haploid daughter cells.