12 And 13

Question 1

Chromatids remain attached to one another until anaphase what is the name of the region in which they are attached?

Answer 1

Centromere

Question 2

Describe anaphase.

Answer 2

Replicated chromosomes are split and move to opposite sides of the cell

Question 3

What is the centrosome and what originates from it?

Answer 3

Help move dna strands

Question 4

At what point in the cell cycle and what stages of mitosis are chromosomes composed of two chromatids?

Answer 4

S phase and Metaphase and interphase

Question 5

What would you expect to see in terms of cell division during the G0 stage of the cell cycle?

Answer 5

Differentiated cell

Question 6

What is PDGF and when/where might we see it?

Answer 6

Growth factor seen in mitosis

Question 7

What is protein kinase(phosphate groups)?

Answer 7

Can activate or inactivate other proteins

Question 8

What is cyclin?

Answer 8

Protein that helps drive the cell cycle, protein that forms catalytically active complexes

Question 9

Cdk

Answer 9

Cyllin dependent kinesis enzyme

Question 10

What factor allows the cell to pass from G2 into mitosis?

Answer 10

Mpf says the cell is mature enough to reproduce

Question 11

What are the longest and shortest part of the cell cycle

Answer 11

Longest is g1, and shortest is mitosis phase

Question 12

What is a genome?

Answer 12

, all genetic information full set of genes

Question 13

What are the characteristics of metaphase 1

Answer 13

Chromosomes are aligned and the alignment determines the independent assortment

Question 14

Explain what happens during prophase

Answer 14

Chromosomes become visible as paired chromatids, nuclear envelope disappears

Question 15

During what stage are chromatids separated from each other

Answer 15

When meiosis has concluded