ch 12 mitosis Flashcards Preview

Bio 121 spring 2014 > ch 12 mitosis > Flashcards

Flashcards in ch 12 mitosis Deck (21)
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1
Q

genome

A

a cells genetic info

2
Q

chromosomes

A

DNA packed into chromosomes

3
Q

chromatin

A

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

4
Q

somatic cells

A

all body cells expect for reproductive cells

5
Q

gametes

A

sperm and egg, repro cells

6
Q

sister chromatids

A

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

7
Q

centromere

A

area where the sister chromotids are most closely attached

8
Q

mitosis`

A

the division of genetic material in the nucleus

9
Q

cytokinesis

A

division of the cytoplasm

10
Q

M phase

A

mitosis and cytokinesis

11
Q

interphase`

A

90 % of cell cycle

consists of g1, s, g2 phase

12
Q

s -phase

A

DNA synthesis

13
Q

mitosis phases

A

prophase, metaphase, anaphase, telophase

14
Q

mitotic spindle

A

moves chromosomes during mitosis

15
Q

centrosome

A

microtubule organizing center

16
Q

aster

A

radial array of short microtubules that extend from the centrosome

17
Q

kinetochore

A

links each sister chromatid to the mitotic spindle

18
Q

metaphase plate

A

where the chromosomes line up during metaphase

19
Q

cleavage furrow

A

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

20
Q

cell plate

A

plant cells

21
Q

binary fission

A

bateria divide in half, bacteria cell division