Reproduction Flashcards

0
Q

Centromere:

A

What binds together the chromatids

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1
Q

Autosomal chromosomes:

A

Chromosomes numbered 1-22

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2
Q

Cytokinesis:

A

When the daughter cells are produced

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3
Q

Diploid:

A

A cell with 23 chromosome pairs.

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4
Q

Abbreviation for diploid

A

2n

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5
Q

Abbreviation for haploid

A

N

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6
Q

Gamete

A

Sex cell/ germ cell

Sperm/egg

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7
Q

Germ cell:

A

Sex cell

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8
Q

Haploid:

A

Cell with only 23 chromosomes

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9
Q

Meiosis

A

Reproduction of sex cells

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10
Q

Mitosis:

A

Reproduction of body cells

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11
Q

Somatic cells

A

Cells produced by mitosis with a complete number of chromosomes.

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12
Q

Tetrad

A

When the four chromosomes stay very close together.

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13
Q

Crossing over

A

When the homologous chromosomes exchange one or more of their genes with eachother.

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14
Q

Zygote

A

The cell formed when two sex cells (sperm and egg) unite.

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15
Q

Order of mitosis stages

A

Interphase, prophase, metaphase, anaphase, telophase

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16
Q

Spermatogenesis produces

A

4 sperms

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17
Q

Oogenesis produces

A

One single egg

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18
Q

Germ cell=

A

Spermatogonium or oogonium

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19
Q

Spermatogonium and oogonium are found

A

In the body

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20
Q

The polar bodies produced in oogenesis don’t

A

Enter the ovaries

21
Q

Start with germ cell and end with

A

Sperm or egg

22
Q

Purpose of mitosis in multicellular organisms

A
GRR
Grow
Replace
Repair
(Asexual Reproduction)
23
Q

Purpose of meiosis in multicellular organisms:

A
Gamete production (sex cell production)
For sexual reproduction
24
Number of daughter cells produced in mitosis
2
25
Number of daughter cells produced in meiosis
4
26
Number of chromosomes in parent cell mitosis:
46
27
Number of chromosomes in parent cell meiosis:
46
28
Number of chromosomes in one daughter cell mitosis:
46
29
Number of chromosomes in one daughter cell meiosis:
23
30
Daughter cells mitosis:
Diploid (2n)
31
Daughter cells meiosis:
Haploid (n)
32
Daughter cells genetically identical to parent in mitosis?
Yes
33
Daughter cells genetically identical to eachother in mitosis?
Yes
34
Daughter cells genetically identical to parent in meiosis:
No
35
Daughter cells genetically identical to eachother in meiosis:
No
36
First stage of cell cycle:
G1
37
What is g1
Growth
38
Second stage of cell cycle
S
39
What occurs in S
Growth and DNA replication
40
Stage 3 of cell cycle:
G2
41
What is g2
Growth and final prep for division
42
What is stage 4 of cell cycle?
M
43
Four(or five) steps in m
Prophase, metaphase, anaphase, telophase, cytokinesis
44
What is the result of the cell cycle
New daughter cells created
45
What are G1,2 and S part of
Interphase
46
Which part of the m phase is not considered part of the mitotic phases?
Cytokinesis
47
When the chromosomes copy and condense they form
Chromatids
48
I'm pulling my act together
Interphase prophase metaphase anaphase telophase
49
Kinetochore:
Specialized region on centromere that links each sister chromosome to the mitotic spindle.
50
Another word for ovum
Egg
51
Fusion of gametes=
Fusion of gametes