10.2

Question 1

Describe the events that take place during interphase.

Answer 1

G1: cell grows
S: DNA & centrioles replicate
G2: prepare for cell division

Question 2

Distinguish prophase stage of mitosis.

Answer 2

condensation of chromosomes, 2 centrioles move to opposite poles, spindle apparatus assemble, nuclear envelope breaks down

Question 3

Distinguish prometaphase stage of mitosis.

Answer 3

microtubules attachment, attach to kinetochores, each sister chromatid connects to opposite poles, chromosomes begin to move to the center

Question 4

Distinguish metaphase stage of mitosis.

Answer 4

alignment in the middle (along metaphase plate)

Question 5

Distinguish anaphase stage of mitosis.

Answer 5

remove cohesion proteins, sister chromatids go 2 opposite poles
 Anaphase a- kinetochores pulled toward poles (movement of sisters)
 B- poles move apart (elongation of cell)

Question 6

Distinguish telophase stage of mitosis.

Answer 6

spindle apparatus come apart, nuclear envelope forms around each set of sisters, now they are chromosomes (they begin to uncoil)

Question 7

Cytokinesis in animals

Answer 7

constriction of actin filaments produce cleavage furrow

Question 8

Cytokinesis in plants

Answer 8

cell plate forms between nuclei

Question 9

Understand the production of two identical daughter cells by mitosis

Answer 9

Mitosis produces 2 identical daughter cells (diploid # of chromosomes is maintained)