Chapter 8,9 &10 Flashcards

0
Q

The centrosomes move away from each other and the nuclear envelopes breaks up during which phase of mitosis?

A

Prophase

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1
Q

What must happen before a cell can begin mitosis?

A

The chromosome must be duplicated

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2
Q

The chromosomes line up in the center of the cell of during which phase of mitosis?

A

Metaphase

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3
Q

The sister chromatids seep rate and begin moving towards opposite poles of the cell during which phase of mitosis

A

Anaphase

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4
Q

At the end of motorists( M) phase, the cytoplasm divides in a process called____

A

Cytokinesis

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6
Q

Most of an organism’s DNA is carried by its____

A

Chromosomes

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7
Q

Replication of chromosomes DNA occurs______

A

Before a cell divides

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8
Q

With the exceptions of gametes, a human cell contains _____ chromosomes.

A

46

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9
Q

Which of the following is a function of the cell cycle that involves mitosis in eukaryotes?

A

Cell replacement

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10
Q

Which of the following is the correct order for the four main stages of mitosis?

A

Prophase, metaphase, anaphase, telophase

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11
Q

The chromosome arrives at the poles and nuclear envelopes form during which phase of mitosis

A

Telophase

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12
Q

In sexually reproducing multicellular organisms, the main functions of mitosis are…

A

Tissue repair/replacement of damage cells ; growth and development

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13
Q

Which events occur during prophase?

A

Chromosomes condense and are attached to spindle fibers ; the nuclear envelope breaks down.

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14
Q

Cytokinesis ___

A

Finished mitosis by dividing the cytoplasm and organelles of the original parent cells into two separate daughters cells

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15
Q

During_____, the cell carries out its normal functions and the chromosomes are thinly spread out though out the nucleus.

A

Interphase

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16
Q

Looking through a light microscope at the dividing cell, you see two separate groups of chromosomes on opposite ends of the cell. New envelopes are taking shape around each group. The chromosomes then begin to disappear as the unwind. You are witnessing _______.

A

Telophase

17
Q

Asexual reproduction ______.

A

Produces offspring genetically identical to the one single parent

18
Q

DNA is found in structures called______.

A

Chromosomes

19
Q

Nucleoli are present during _____.

A

Interphase

20
Q

Cytokinesis often, but not always, accompanies ______.

A

Telophase

21
Q

Chromosomes become visible during

A

Prophase

22
Q

Centromeres divide and sister chromosomes become full-fledged chromosomes during______.

A

Anaphase

23
Q

Spindle fibers attach to kinetochores during _____.

A

Prometaphase

24
Q

Cytokinesis in animal cels involves the formation of ____

A

Cleavage furrow

25
Q

Events of _____ include the condensation of chromatin and dispersal of nucleoli.

A

Prophase

26
Q

During ______ chromosomes align along the metaphase plate

A

Metaphase

27
Q

The events of _____ includes the attachment of spindle fibers to kinetochores.

A

Prometaphase

28
Q

______ in the plant cells involves the formation of a cell plate

A

Cytokinesis

29
Q

During ____ both nuclear envelopes and nucleoli reform.

A

Telophase

30
Q

During prophase a homologous pair of chromosomes consists of ______.

A

Two chromosomes and four chromatids

31
Q

Nucleosides are made of_____.

A

DNA wrapped around histone proteins

32
Q

Plant cells cytokinesis differs from animal cell cytokinesis because….

A

Plant cells form a cell plate and animal cells do not.

34
Q

The cell cycle is a series of events that occur in which order?

A

G1, S, G2, mitosis, cytokinesis