Mitosis/Meiosis

Question 1

g0

Answer 1

cell is not growing

Question 2

g1

Answer 2

rapid growth of cell but normal functioning

Question 3

s

Answer 3

duplication of chromosomes inside nucl.eaus

Question 4

g2

Answer 4

prep for mitosis, centrioles double

Question 5

early prophase

Answer 5

chromatin thickens and condenses into chromosomes, spindle fibres grow out of centrioles as they move to opposite poles of the cell

Question 6

late prophase

Answer 6

nuclear membrane disappears and nucleolous disappears

Question 7

metaphase

Answer 7

spindle fibres attach to the centromeres and pull chromosomes to the equator so they form a line, checkpoint

Question 8

anaphase

Answer 8

centromeres seperate so the sister chromatids are pulled apart to opposite sides

Question 9

telophase

Answer 9

chromosomes unwind to become chromatin again, new nuclear membrane formes and nucleaolus reappears

Question 10

cytokenisis

Answer 10

actual dividing, pinching the cell membrane to create 2 new identical daughter cells

Question 11

independent assortment

Answer 11

chromosomes splitting into daughter cells randomly

Question 12

spermatogenisis/oogenisis

Answer 12

the process in which sperm/egg is made

Question 13

polar bodies

Answer 13

3 additional haploid cells that are created but not fertilized (instead “recycled” in the body)

Question 14

prophase I

Answer 14

synapsis: Chromosomes come tgt in homologous pairs to form a tetrad
crossing over: small sections of adjacent chromosomes are exchanged (genetic variation)

Question 15

metaphase I

Answer 15

Homologous pairs line up in the equatorial plate

Question 16

anaphase I

Answer 16

homologous chromosomes seperate to opposite ends of cell, pulled by spindle fibres

Question 17

telophase I

Answer 17

nuclear membrane reforms around chromosomes, cytokensis follows

Question 18

meiosis II

Answer 18

same as mitosis basically