mitosis

Question 1

what are the 5 phases of mitosis?

Answer 1

1) prophase
2) metaprophase
3) mate phase
4) anaphase
5) telophase

Question 2

prophase

Answer 2

chromatin condenses

sister chromatids appear

mitotic spindle forms

Question 3

prometaphase

Answer 3

nuclear envelope fragments

microtubules enter nuclear area and attach to kinetochores

Question 4

metaphase

Answer 4

chromosomes line up at metaphase plate

Question 5

anaphase

Answer 5

sister chromatids separate and move to opposite ends of the cell

Question 6

telophase and cytokinesis

Answer 6

2 daughter nuclei form

animals: cleavage furrow
plants: vesicles form cell plate

Question 7

G1 checkpoint

Answer 7

most important

checks for cell size, growth factors, and DNA damage

if stopped cell goes into G0

Question 8

G2

Answer 8

checks for completion of DNA replication and DNA damage

if stopped cell will undergo apoptosis

Question 9

M (spindle) checkpoint

Answer 9

checks for microtubule attachment to chromosomes at the kinetochores at metephase

Question 10

cyclins

Answer 10

controls cell cycle

cyclin dependent kinases are activated by cyclins