Chapter 10

Question 1

A series of events in a cell’s lifetime. When cell divides and plot into 2. Allow growth from a single cell.

Answer 1

Cell cycle

Question 2

All cells DNA. Or all of your DNA. Chromosomes make up this.

Answer 2

Genome

Question 3

New cell has to have all DNA. How many chromosomes make up your genome?

Answer 3

46

Question 4

Every single cell in your body except sperm/egg. How many sets of chromosomes do they have?

Answer 4

Somatic, 2 sets

Question 5

Reproductive cells— sperm/egg. How many sets of chromosomes?

Answer 5

Gametes, 1 set

Question 6

Example: skin cell: DNA would be (23) in egg and sperm (23) .

To make a baby that is half your moms and half your dads DNA

Question 7

Phases of Cell Cycle (Mitosis):

Answer 7

1.) Interphase
2.) Mitotic (M) phase

1.) Interphase
A.) G1 phase
B.) S phase
C.) G2 phase
2.) Mitotic (M) phase
A.) Prophase
B.) Metaphase
C.) Anaphase
D.) Telophase
3.) Cytokenesis

Question 8

Before cell division, DNA is what?

Answer 8

replicated

Question 9

duplicated chromosomes

Answer 9

sister chromatid

Question 10

where the chromatids are attached

Answer 10

centromere

Question 11

division of genetic material. Creates what daughter cells that are somatic?

Answer 11

Mitosis, diploid

Question 12

Cell is not dividing or splitting into 2

Answer 12

Interphase

Question 13

Mitosis and cytokinesis—-is dividing

Answer 13

Mitotic (M) phase

Question 14

Cells is growing/getting bigger; makes a decision that it needs to divide like an “automatic” program

Answer 14

G1 phase

Question 15

‘Synthesis’ —makes new DNA because we’re making a new cell that needs its own DNA. Cells grow in all 3 phases but only duplicate in this phase.

Answer 15

S phase

Question 16

Cell checks itself— checks that all DNA is made properly and properly grown

Answer 16

G2 phase

Question 17

Sister chromatid duplicate/copy chromosomes— DNA. Keeps copies together. Nucleus split into 2

Answer 17

Mitosis

Question 18

DNA condenses/comes together to get organized. Spindle fibers form. Temporarily remove nucleus/nucleus dissolves. Sister chromatids—- copies are associated/linked together

Answer 18

Prophase

Question 19

Middle of cell. Chromatids are lined/align up in middle of cell. Get them organized because they’re about to split apart

Answer 19

Metaphase

Question 20

Chromatids are being pulled apart. The copies are being split/ pulled apart by spindle fibers. What is it and what pull apart the chromatids?

Answer 20

Anaphase. Proteins pull apart the chromatids

Question 21

Opposite of prophase. DNA spreads back out/ doesn’t need to be organized, condenses, spindle fibers dissolve, nucleus reforms (2)—2 separate nucleus but not 2 different complete cells yet

Answer 21

Telophase

Question 22

Cytoplasm divides into 2. Have 2 cells; created 2 new somatic cells; cells are identical to cell you started with meaning the DNA

Answer 22

Cytokenesis

Question 23

In animal cells, this occurs by a process known as cleavage, forming cleavage furrow. In plant cells, a cell plate forms during this.

Answer 23

Cytokinesis

Question 24

The frequency of cell division varies with the type of cell.
These differences result from regulation at the molecular level. Cancer cells manage to escape the usual controls on the cell cycle.

Answer 24

Cell Cycle Regulation

Question 25

Regulate cell cycle. Make sure your cells are going through the cell cycle correctly. Cell cycle stops until a go-ahead signal is received.

Answer 25

Checkpoints

Question 26

Which of the following events does NOT occur during M-phase?
A.) Nuclear division
B.) Chromosome separation
C.) Cytoplasm Division
D.) Cell growth
E.) Nuclear division and cytoplasm division

Answer 26

D. Cell growth

Question 27

A skin cell has 46 chromosomes in G1. How many chromosomes does that cell have in G2? After the M-phase?

Answer 27

92, then 46