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Biology > Ch.10 Mitosis > Flashcards

Ch.10 Mitosis Flashcards

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1
Q

A sexual reproduction

A

Clones, only one “parent needed” exact copies made

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2
Q

Length of cell cycle

-mitosis?

A

24 hours

-1 hour

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3
Q

4 stages of mitosis

A

Prophase
Metaphase
Anaphase
Telophase

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4
Q

Zygote

A

A unicellular organism that divides to become multicellular

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5
Q

Spindel fibers

A

Aka micro tubules pull DNA apart

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6
Q

Interphase

-Parts of interphase

A

Cell grows, copies DNA and prepares for division

-G1: gap, everything happens, normal cell function
S: DNA synthesis, DNA is replicated
G2: gap, normal cell function, preparation completed

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7
Q

Why make DNA into a chromosome

A

Easier to move across the cell if its tight and together, less possible damage

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8
Q

Histone proteins

A

DNA winds around histones, helps condense it

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9
Q

Chromosome

A

2 identical sets of DNA, one will go to each side of the cell

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10
Q

Chromatid

A

One of the identical sets of DNA

Cell only needs on of each

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11
Q

Centromere

A

Holds chromatids In a chromosome together

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12
Q

Cytokinesis

A

The actual dividing of the cell membrane

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13
Q

Mitosis

A

The prepatory process before the cell divides

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14
Q

Prophase

A

Chromosomes forming,
nuclear envelope dissolves
Mitotic spindle forms

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15
Q

Metaphase

A

Chromosomes line up across the middle of the cell

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16
Q

Anaphase

A

chromosomes pulled apart

17
Q

Telophase

A

New nucleus begin to form, DNA unwrapping

18
Q

How are chromosomes formed

A

DNA wraps around histone protein
This coils into a tightly packed chromatid
2 sister chromatids held together by a centromere

19
Q

Kinetochore

A

The “hands” on the centromere that attach to the spindle fibers so the chromosome can be pulled apart.
Kinetochores form both sides of the chromosome attach to spindle fibers from both poles of the cell

20
Q

Metaphase plate

A

An imaginary plane across thee exact middle of the cell

21
Q

Cleavage furrow

A

When the membrane begins to pinch in

Identification the cell is dividing

22
Q

Cytokinesis in plants

A

A new cell wall begins to form from inside the cell until it fuses with the existing one

23
Q

Binary fission

A

How prokaryotes replicate
DNA replicates and moves to opposite sides of the cell
The cell wall fuses in creating 2 new cells

Biology (10 decks)

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