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Bio 1020 > Ch. 10 > Flashcards

Ch. 10 Flashcards

1
Q

What is made of strands of DNA and proteins (histones)
also tightly coiled during cell division

A

Chromosomes

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2
Q

In prokaryotes a single chromosome is attached to what?

A

plasma membrane

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3
Q

Some prokaryotes have small circular strands of DNA called what?

A

Plasmids

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4
Q

tf
Each chromosome contains different genetic information that has to be passed on to new cells

A

True

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5
Q

What two things need to happen in order for genetic information to be passed o new each cell?

A

1.Chromosomes need to be copied and
2.The copies divided

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6
Q

What are the two main phases of the cell cycle

A
  1. Interphase
  2. Miotic phase
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7
Q

What miotic phase do most cells spend their time in?

A

Interphase

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8
Q

Name of the period when chromosomal pairs are separated.

A

Mitosis

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9
Q

Name of period when cells divide

A

cytokinesis

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10
Q

what are used to sort chromosomes and pull them apart?

A

Protein fibers

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11
Q

What are the 4 stages of mitosis

A
  1. Prophase
  2. Metaphase
  3. Anaphase
  4. Telophase
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12
Q

What is the term for identical copies of the same chromosome?

A

Sister chromatids

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13
Q

What is the name of the location in which the sister chromatid are attached?

A

Centromere

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14
Q

Name of the of the long strands of proteins in prophase

A

Miotic spindle

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15
Q

Where are the centers that produce the miotic spindle?

A

Microtubule organizing centers (MTOCs)

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16
Q

In which phase does the nuclear membrane break down?

A

Prophase

17
Q

In what stage does the miotic attach to the sister chromatid pairs?

A

Prophase

18
Q

tf:
longer protein fibers can pull with more force

A

True

19
Q

In what phase of mitosis do the chromosomes line up in the middle of the cell?

A

Metaphase

20
Q

in what miotic phase are the sister chromatids pulled apart and moved to opposite sides of the cell?

A

Anaphase

21
Q

In which miotic phase are two new nuclear membranes formed and the chromosomes become unwound

A

Telophase

22
Q

What is the result of mitosis without cell division?

A

Multinucleate cells.

Bio 1020 (14 decks)

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