week 12 Flashcards

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1
Q

sperm goes from

A
vagina
to cervix
to uterus
to the fallopian tube
to the ovum
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2
Q

ovum is released from the

A

ovary

to

the fallopian tube to get fertilized, then plant itself in the womb

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3
Q

when the duplication of cell material in ‘ciliate division’ is complete

A

the cell walls close in preparation for fission

then the Ciliate divides into two equate parts

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4
Q

total time for cell division

A

“30 minutes”

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5
Q

meiosis

A

the process that generates gamines

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6
Q

gamines

A

sexual reproduction cells (eggs and sperm)

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7
Q

within the nucleus of a testicle diploid cell

A

the chromosomes are dispersed

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8
Q

diploid chromosomes are dispersed until…

A

meiosis begins

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9
Q

there are two copies of each…

A

chromosome

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10
Q

each pair of chromosomes are called a

A

homologous pair

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11
Q

red chromosome from the…

A

maternal parent

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12
Q

blue chromosome from the…

A

paternal parent

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13
Q

during interphase

A

chromosomes duplicate inside the nucleus

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14
Q

interphase show that each chromosome

A

has identical sister chromotids attached at the centromere

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15
Q

meiosis 1 begins with

A

prophase 1

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16
Q

prophase 1

A

chromosomes become condensed

homologous chromosomes pair up

17
Q

crossing over

A

an event that can happen during chromosomes being condensed,

in which the genes of the chromosomes will combine in strange and new ways

18
Q

after meiosis 1, prophase 1 comes…

A

meiosis 1, metaphase 1

19
Q

metaphase 1

A

the nuclear envelope is broken down

the spindle spans across the cell, connecting both ends of the cell

as well as attaching to, and aligning, the homologous pairs

20
Q

the spindle grows

A

as both ends of the cell synthesizes tubulin protein, creating mictrotubules

21
Q

attached to each chromosomes centromere is

A

a kinetocore

22
Q

kinetocore

A

part of the chromosome that attaches to, and moves along, microtubules

23
Q

microtubules

A

the strings of protein that connects to a homologs kinetocore

24
Q

after meiosis 1, metaphase 1 comes…

A

meiosis 1, Anaphase 1

25
Q

in meiosis 1, Anaphase 1

A

members of homologous pairs disconnect from each other,

causing the altered chromosomes in each half to pull pulled over to either spindle

26
Q

after meiosis 1, Anaphase comes…

A

Meiosis 1, Telophase

27
Q

Meiosis 1, Telophase

A

the two spindles drift apart, taking their chromosomes with them, they both separate to create 2 cells

28
Q

after Meiosis 1, Telophase comes

A

Meiosis 2, Prophase 2

29
Q

Meiosis 2, Prophase 2

A

now, in the two cells, prophase happens all over again

chromosomes condense in both cells’ nuclei, further obscuring genes

homologous chromosomes pair up

30
Q

Meiosis 2, Metaphase/Anaphase 2

A

the spindle still attaches to chromosomes, but there are now half as many.

the sister chromotids are separated by the spindle

31
Q

Meiosis 2, Telophase 2

A

another division creates 4 cells in total, the chromosomes now being split into the 4 different cells.