7 Cell Cycle and Cell Checkpoints

Question 1

For cell growth. By the end of this a cell has two full sets of DNA (chromosomes) and is large enough to begin the division process.

Answer 1

Interphase

Question 2

for cell division: making two cells out of one.

Answer 2

M- phase

Question 3

quiescence (state/senescent state),
Resting phase

Answer 3

Gap 0

Question 4

cell that do no divide anymore (nerve cell)

Answer 4

Permanent cell

Question 5

cells that divide when needed

Answer 5

Stable cell

Question 6

cell that always divide

Answer 6

Labile cell

Question 7

Chromosomes condense and are more visible.
The nuclear membrane (envelope) disappears.

Answer 7

Prophase

Question 8

Centrioles have separated and taken positions on the opposite poles of the cell. Spindle fibers form and radiate toward the center of the cell.

Answer 8

Prophase

Question 9

Chromosomes line up across the middle of the cell. Spindle fibers connect the centromere of each sister chromatid to the poles of the cell.

Answer 9

Metaphase

Question 10

Centromeres that join the sister chromatids split,
Sister chromatids separate becoming individual chromosomes and will move to opposite poles of the cell.

Answer 10

Anaphase

Question 11

Chromosomes (each consisting of a single chromatid) uncoil. Spindle fibers break down and dissolve. Then Cytokinesis begins.

Answer 11

Telophase

Question 12

division of the cytoplasm into two individual cells.

Answer 12

Cytokinesis

Question 13

In synthesis phase, DSBs cause deletions, translocations, and fusions in the DNA. What does DSB refers to?

Answer 13

Double stranded breaks

Question 14

In gap 2, in order to repair DSB ________ should recognize the damage

Answer 14

Endonuclease