Cell Cycle

Question 1

Somatic cells

Answer 1

Have two sets of chromosomes

Question 2

Gametes

Answer 2

have half as many chromosomes as somatic cell

Question 3

homologous chromosomes

Answer 3

Matched chromosomes

Question 4

Sister Chromatids

Answer 4

genetically identical chromosomes

Question 5

Prophase

Answer 5

Chromosomes condensed and become visible

Question 6

Perometaphase

Answer 6

Chromosomes continue to condense, centrosomes move toward opposite poles

Question 7

Metaphase

Answer 7

Mitotic spindle is fully developed, centrosomes are at opposite poles of the cell, chromosomes are lined up at the metaphase peak plte

Question 8

Anaphase

Answer 8

Cohesion proteins binding the sister chromatids together break down, pulled toward opposite poles

Question 9

telophase

Answer 9

Chromosomes begin to decondense, nuclear envelope material surrounds each set of chromosomes

Question 10

Cytokinesis

Answer 10

Animal cells: a cleavage furrow separates the daughter cells, plant cells: a cell plate separates the daughter cells

Question 11

Cytokinesis- animal cells

Answer 11

Contractile ring- made of microfilaments forms fissure- cleavage furrow

Question 12

Cytokinesis- Closer look- plant

Answer 12

Cell Plate needs to form- precursor to cell wall.

Question 13

G1 checkpoint

Answer 13

Is cell big enough?
•Are there nutrients?
•Is there damage to the DNA?

Question 14

G2 checkpoint

Answer 14

Is cell big enough?
•Are there nutrients?
•Was the DNA replicated correctly??

Question 15

Metaphase-Anaphase Checkpoint

Answer 15

Are all of the chromosomes attached to a microtubule?

•Are each of the sister chromatids attached to microtubules from opposite poles?