Bio12.2

Question 1

What percentage of interphase takes up the cell cycle can be divided into subspaces?

Answer 1

90%

Question 2

First gap

Answer 2

G1 phase

Question 3

S phase

Answer 3

Synthesis

Question 4

G2 phase

Answer 4

Second gap

Question 5

The cell grows during all three phases but chromosome are only duplicates during …?

Answer 5

S phase

Question 6

Mitotic spindle

Answer 6

A structure made of microtubules that controls chromsome movement during mitosis

Question 7

What is the mictrouble organizing center in animal cells

Answer 7

Centrosome

Question 8

What begins the assembly of spindle microtubules?

Answer 8

Centrosome

Question 9

The _____ replicates during interphase

Answer 9

Centrosome

Question 10

After the centrosome replicates, what happens?

Answer 10

The forming two centrosomes that migrate to opposite ends of the cell during prophase and pro metaphase

Question 11

Aster

Answer 11

Radial array of short microtubules

Question 12

Where can you find the microtubules?

Answer 12

Extending from each centrosome

Question 13

What is composed of the centrosomes?

Answer 13

The spindle microtubules and the asters

Question 14

What do spindle microtubules attach to in pro metaphase?

Answer 14

Kinetochores

Question 15

Protein complexes associate with centromeres?

Answer 15

Kinetochores

Question 16

The chromosomes area ll lined up ath the ______ ____ in metaphase.

Answer 16

Metaphase plate

Question 17

A plane midway between the spindle’s two poles

Answer 17

Metaphase plate

Question 18

In anaphase the cohesions are cleaved by an enzyme called ____

Answer 18

Separase

Question 19

Sister chromatids separate and move along the _______ ______ toward opposite ends of the cell.

Answer 19

Kinetochore microtubules

Question 20

What microtubules from opposite poles overlap and push against each other, elongating the cell?

Answer 20

Nonkinetochore