ch 12 mitosis Flashcards Preview

Bio 121 spring 2014 > ch 12 mitosis > Flashcards

Flashcards in ch 12 mitosis Deck (21):
1

genome

a cells genetic info

2

chromosomes

DNA packed into chromosomes

3

chromatin

the entire complex of DNA and proteins that are building materials of a chromosome

4

somatic cells

all body cells expect for reproductive cells

5

gametes

sperm and egg, repro cells

6

sister chromatids

each duplicated chromosome has two sister chromatids, joined copies of the original chromosome

7

centromere

area where the sister chromotids are most closely attached

8

mitosis`

the division of genetic material in the nucleus

9

cytokinesis

division of the cytoplasm

10

M phase

mitosis and cytokinesis

11

interphase`

90 % of cell cycle
consists of g1, s, g2 phase

12

s -phase

DNA synthesis

13

mitosis phases

prophase, metaphase, anaphase, telophase

14

mitotic spindle

moves chromosomes during mitosis

15

centrosome

microtubule organizing center

16

aster

radial array of short microtubules that extend from the centrosome

17

kinetochore

links each sister chromatid to the mitotic spindle

18

metaphase plate

where the chromosomes line up during metaphase

19

cleavage furrow

shallow grove near old metaphase plate that is where cell seperation starts
animal cells

20

cell plate

plant cells

21

binary fission

bateria divide in half, bacteria cell division