Chapter 5

Question 0

Phases of Mitosis

Answer 0

Prophase
Metaphase
Anaphase
Telephase
Cytokinesis

Question 1

Mitosis

Answer 1

The process in which the nucleus divides

Question 2

Prophase

Answer 2

~ first and longest phase
~ chromatin condenses into chromosomes & the nuclear envelope breaks down.
~ Centrioles separate & move to opposite ends
~ spindle fibers start

Question 3

Metaphase

Answer 3

~ spindle fibers attach to the centromere of each sister chromatid

Question 4

Anaphase

Answer 4

~ sister chromatids separate & centromeres divide
~ sister chromatids are pulled apart by shortening spindle fibers
~ each pair of sister chromatids move to opposite ends of the pole

Question 5

Telephase

Answer 5

~ chromosomes being to uncoil and form chromatin

~ spindle fibers break down and new nuclear envelope forms

Question 6

Cytokinesis

Answer 6

~ final stage
~ cytoplasm splits into two
~ cell divides (two daughter cells form)

Question 7

Interphase

Answer 7

Three groups :
G1
S
G2

Question 8

G1

Answer 8

~ Cells grow rapidly
~ makes proteins for DNA replication
~ copies organelles
~ prepares for division

Question 9

S

Answer 9

~ cells DNA copied

Question 10

G2

Answer 10

~ cell makes final preparations to divide

Question 11

Meiosis

Answer 11

Type of cell division where the number of chromosomes is reduced to half.
~ homologous chromosomes separate and haploid cells form.

Question 12

Meiosis 1

Answer 12

Prophase: nuclear envelope breaks down; chromosomes condense

Metaphase: spindle fibers attach to paired homologous chromosomes

Anaphase: spindle fibers shorten & chromosomes from homologous pair separate to opposite ends of the poles.

Telophase/cytokinesis: spindle fibers break down and new envelope forms. Cytoplasm divides.

Question 13

Meiosis II

Answer 13

Prophase II: nuclear envelope breaks down & spindle fibers begin to form; centriole separates

Metaphase II: spindle fibers line up the sister chromatids of each chromosome

Anaphase II: sister chromatid separate & move to opposite ends of the poles

Telophas/cytokinesis II: spindle fibers break down; new envelope forms; cytoplasm divides & 4 haploid cells result.

Question 14

Haploid

Answer 14

Cells that contain half the number homologous chromosomes found in other cells of organisms

Question 15

Diploid

Answer 15

Cells that have twice the number of chromosome as gamete (parent reproductive cells)