Mitosis and Cell Cycle

Question 1

How many chromosomes are there?

Answer 1

46 chromosomes

Question 2

How many pairs of chromosomes are there?

Answer 2

23 pairs of chromosomes

Question 3

Where are chromosomes found?

Answer 3

In the nucleus

Question 4

What do chromosomes make up?

Answer 4

DNA

Question 5

How are pairs of chromosomes made up?

Answer 5

You inherit one pair from your mother and the other from your father

Question 6

What are the 3 main stages of the cell cycle?

Answer 6

1. Interphase
2. Mitosis
3. Cytokenisis

Question 7

What are the 3 stages of the first stage in the cell cycle, Interphase?

Answer 7

G1 - growth and duplication
S - DNA Synthesis
G2 - growth and preparation for mitosis

Question 8

What is G1 in Interphase?

Answer 8

Growth and duplication

Question 9

What is S in Interphase?

Answer 9

DNA synthesis

Question 10

What is G2 in Interphase?

Answer 10

Growth and preparation for mitosis, here it checks for mistakes so it can replace any damaged cells

Question 11

What is G0?

Answer 11

Cell cycle arrest

Question 12

What is Stage 2 of the Cell Cycle?

Answer 12

Mitosis

Question 13

What occurs in Mitosis?

Answer 13

The nuclear membrane breaks down, chromosomes line up at the centre of the cell and the arms pull apart to opposite sides of the cell.
The nuclear membrane reforms around each new set of chromosome, they become the new nuclei.

Question 14

What is the last stage of the cell cycle?

Answer 14

Cytokenisis

Question 15

What occurs in Cytokenisis?

Answer 15

It is the physical separation of the cells and divides into 2 daughter cells

Question 16

What are Chromosomes, where are they found and what do they carry?

Answer 16

Chromosomes are a threadlike structure of DNA molecules, they are found in the nucleus and carry a high number of genes