2.3 Mitosis

Question 1

G1

Answer 1

Protein Synthesis + most new organelles produced

Question 2

S

Answer 2

DNA semi-conservative replication takes place

Question 3

G2

Answer 3

Second Growth Phase

Question 4

Histones

Answer 4

Positively charged proteins involved in the coiling of DNA to form dense chromosomes in cell division

Question 5

Stages of Mitosis

Answer 5

Prophase
Metaphase
Anaphase
Telophase

Question 6

Prophase

Answer 6

1) Nuclear envelope breaks down
2) Spindle fibres appear
3) Chromosomes condense

Question 7

Metaphase

Answer 7

1) Spindle fibres attach to chromosomes
2) Chromosomes line up at the equator of the cell

Question 8

Anaphase

Answer 8

1) Centromeres divide
2) Sister chromatids move to the opposite poles of the cell

Question 9

Telophase

Answer 9

1) Nuclear envelope reappears
2) Spindle fibres disappear
3) Chromosomes decondense

Question 10

Cytokinesis

Answer 10

1) Cytoplasm divides
2) Parent cell becomes 2 daughter cells with identical genetic information

Question 11

What happens in interphase

Answer 11

G1
S
G2

Question 12

Asexual Reproduction

Answer 12

1 Parent
Parent passes on all their genes to offspring
Offspring are genetically identical to parent

Question 13

Advantages of Asexual Reproduction

Answer 13

Doesn’t take time or energy to find a mate

Question 14

Disadvantages of Asexual Reproduction

Answer 14

Disease may affect all the individuals in a population
No genetic diversity
Small Gene Pool