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cell division > cell division > Flashcards

cell division Flashcards

1
Q

chromosome

A

coiled DNA

contains blueprint for structures & functions

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2
Q

Diploid Chromosome Number

A

total # of chromosome in the nucleus of each somatic cell always even!
MITOSIS

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3
Q

Sex Chromosome Number

A

1 of the pairs of chromosome that make up the diploid chromo. number
determine gender

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4
Q

Haploid Chromosome number

A

reduced number of chromosome in the reproductive cells

MEIOSiS

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5
Q

Chromatids

A

strands of genetic info.

1 chromarid + 1 chromatid joined by a centromere= a chromosome

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6
Q

centromere

A

protein disk that hold together chromatids to form a chromosome
HOLD CHROMOSOME TO A SPINDLE FIBER during cell division

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7
Q

spindle fiber

A

middle of microtubule that extend from centromere

aid in PULLING CHROMOSOME apart

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8
Q

cytokinesis

A

separation of cytoplasm into SEPARATE DAUGHTER CELL

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9
Q

CYTOKINESIS

A

final act cell splits in two

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10
Q

what is before mitosis

A

INTERPHASE

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11
Q

interphase

A

life sustaining activities

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12
Q

3 phases of interphase

A

G1 protein sythesis ATP production
S DNA duplicates identical copies
G2 organelles duplicate

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13
Q

Mitosis

A

P.M.A.T.

prophase, metaphase, anaphase, telophase

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14
Q

two phases of prophase

A

early prophase

late prophase

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15
Q

early prophase

A

chromatin finishes turning into chromosome

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16
Q

later prophase

A

nuclear envelop, nucleus, cytoskeleton disappear.

microtubules begin to lengthen from centrioles

17
Q

Metaphase

A

chromo’s line up in exact middle of cell!

spindle fibers attach to centromere

18
Q

anaphase

A

has two phases
early anaphase
late anaphase

19
Q

early anaphase

A

CHROMATIDS SPLIT APART

each chromatid becomes chromosome

20
Q

late anaphase

A

CLEVAGE FURROW develops

21
Q

telophase

A

cell continues to split in half
chromosome revert back to chromatin
nuclear envelop reappears
spindle fibers disassemble

22
Q

CYTOKEIESIS

A

END OF TELOPHASE
process of cytoplasmic division
TWO new DAUGHTER cells(cycle is about to repeat itself)

cell division (2 decks)

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