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Principles of Biology I > Ch. 10 Mitosis > Flashcards

Ch. 10 Mitosis Flashcards

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1
Q

What is Mitosis?

A

a parent cell transmits one copy of every chromosome to each of its two daughter cells.

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2
Q

What is the term for when a chromosome has two chromatids?

A

Sister Chromatids

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3
Q

What is the phase a cell spends most of its time in?

A

Interphase

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4
Q

What is the phase in which Mitosis and Cytokinesis occurs?

A

M Phase

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5
Q

What is G1 Phase?

A

growth and normal metabolism occur

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6
Q

What is S Phase?

A

DNA is copied

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7
Q

What is G2 Phase?

A

preparation for cell division

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8
Q

How is Mitosis defined in M Phase?

A

division of DNA and nucleus through PPMAT stages

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9
Q

What is Cytokinesis?

A

division of cell to form two cells

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10
Q

What does PPMAT stand for?

A
  1. Prophase
  2. Prometaphase
  3. Metaphase
  4. Anaphase
  5. Telophase
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11
Q

What are the 3 steps of Prophase?

A
  1. Chromatin condenses into chromosomes
  2. Spindle fibers form
  3. Nucleus dissolves
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12
Q

What is the role of Centrioles?

A

produce spindle fibers and have on end attached to the fibers.

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13
Q

What happens in Prometaphase?

A

Begins when the nucleus finishes dissolving
Spindle fibers attach to Kinetochore of chromosome
Chromosome begin moving toward mid-plane

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14
Q

What happens during Metaphase?

A

All the cell’s chromosomes align at the middle

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15
Q

What happens during Anaphase?

A

Sister chromatids separate from each other and move to opposite poles of the cell.
Ends when all chromatids reach poles.

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16
Q

What are the 3 steps of Telophase?

A
  1. Chromosomes decondense to chromatin
  2. New nuclear envelope forms around each set
  3. Spindle fibers disappear
17
Q

What happens during Cytokinesis?

A

Division of the Cytoplasm to yield two daughter cells

18
Q

How do Prokaryotes divide?

A

Through Binary Fission. Divide one cell into two cells.

19
Q

What is the shape of DNA in a prokaryote?

A

DNA is a singular, circular chromosome

20
Q

Define a Diploid

A

when a cell has two sets of chromosomes (Somatic)

Principles of Biology I (4 decks)

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