cell cycle

Question 1

how long does cell division of skin fibroblasts in culture take?

Answer 1

24hrs

Question 2

how long does cell division of bacteria take?

Answer 2

20 mins

Question 3

how long does cell division of gut lining epithelial cells take?

Answer 3

12hrs

Question 4

how long does cell division of frog embryo cells take?

Answer 4

30 mins

Question 5

how long does cell division of neurones take?

Answer 5

never

Question 6

how long does cell division of yeast take?

Answer 6

90 mins

Question 7

how long does cell division of human liver cells?

Answer 7

1 yr

Question 8

which phase of the cell cycle is most dominant?

Answer 8

M

Question 9

The Mitosis-promoting factor (maturation-promoting factor; MPF) consists of which proteins?

Answer 9

Cyclin-dependent kinase and Cyclin

Question 10

what happens to levels of cdk during the cell cycle?

Answer 10

remians constant

Question 11

what happens to the levels of the four cyclins during the cell cycle?

Answer 11

fluctuate

Question 12

what would cause the cell cycle to halt?

Answer 12

dna damage
unfavourable extra cellular environment
unreplicated dna

Question 13

Which phase of the cell cycle could be viewed as the holding phase in which most cells spend most of their time?

Answer 13

G0

Question 14

what happens during M phase?

Answer 14

chromosomes divide

Question 15

what happens during S phase?

Answer 15

chromosomes duplicate

Question 16

When a cell divides, the two resulting cells are called…

Answer 16

daughter cells

Question 17

what does a kinase do?

Answer 17

phosphorylates amino acids, typically serine, threonine and tyrosine.

Question 18

Interphase is which of the following combination of phases?

Answer 18

G1, S and G2