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drr > Mitosis and Meiosis > Flashcards

Mitosis and Meiosis Flashcards

1
Q

1 cell division:
2 daughter cells
Diploid = 2n
23 pairs of chromosomes = 46 Chromosomes

A

MITOSIS

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2
Q

2 cell divisions:
4 cells product
of meiosis
Haploid = n
23 chromosomes

A

MEIOSIS

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3
Q

Replication of DNA

A

Interphase

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4
Q

Same gene sequence
Same loci
Centromere location
Chromosomal length

A

Homologous chromosomes

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5
Q

chromosomes begin to condense and attain a compact structure.

A

Leptotene

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6
Q

Chromosomal synapsis - pairing of chromosomes.

A

Zygotene

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7
Q

A force that connects 2 chromosomes in zygotene

A

Synaptonemal complex.

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8
Q

It forms bivalent or tetrad form.

A

zygotene

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9
Q

crossing over of non-sister chromatids of homologous chromosomes.

A

Pachytene

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10
Q

Formation of chiasma

A

Pachytene

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11
Q

The dissolution of the synaptonemal complex and separation of the homologous chromosomes except at the sites of cross-over.

A

Diplotene

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12
Q

The X-shaped structures formed during separation are known in diplotene is

A

chiasmata

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13
Q

Termination of chiasmata

A

Diakinesis

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14
Q

assembly of the meiotic spindle to separate the homologous chromosomes, nucleolus disappears and the nuclear envelope breaks down.

A

Diakinesis

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15
Q

Random pairing of chromosomes in the middle

A

Metaphase I

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16
Q

tool used by scientists to identify, organize, and study human
chromosomes

A

Karyotyping

17
Q

Removes chromosomal segment

A

deletion

18
Q

repeats a segment

A

duplication

19
Q

inverses segment within a chromosome

A

inversion

20
Q

moves segment from one chromosome to another non chromatid

A

translocation

21
Q

occurs when homologous chromosomes (meiosis I) or sister chromatids (meiosis II) fail to separate during meiosis.

A

Nondisjunction

22
Q

state of having a chromosome number that is an exact multiple of a chromosome number

A

Euploidy

23
Q
A

drr (17 decks)

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