mitosis

Question 1

what happens during prophase

Answer 1

chromosomes condense and become visible
nuclear membrane breaks down
spindle fibres form

Question 2

what happens during metaphase

Answer 2

chromosomes line up at the equator and spindle fibres attatch to the centromeres

Question 3

what happens during anaphase

Answer 3

centomeres split
spindle fibres pull sister chromosomes to opposite poles

Question 4

what happens during telophase

Answer 4

chromosomes decondense and neuclear membranes form around each set of chromosomes.

Question 5

what happens during cytokinesis

Answer 5

cytoplasm divides and produces to genetically identical daughter cells

Question 6

What is the purpose of mitosis

Answer 6

the purpouse is growith tissue repair and asexual reproduction

Question 7

what happens during interphase

Answer 7

DNA replicates organelles replicate and the cell grows

Question 8

why do chromosomes appear as two sister chromatids during mitosis

Answer 8

because DNA has replicated during interphase

Question 9

What causes chromatids to separate in anaphase?

Answer 9

the centromere splits, and spindle fibres contract to pull chromatids apart

Question 10

Why are the daughter cells genetically identical after mitosis

Answer 10

because DNA replication is accurate and sister chromatids are seperated precisely into each new cell

Question 11

how can a mutation during DNA replication affect mitosis

Answer 11

a mutation would be passed down to both daughter cells beacuse mitosis produces 2 identical cells

Question 12

Describe the stages of mitosis in the correct order.

Answer 12

Prophase
Chromosomes condense and become visible.
Nuclear envelope breaks down, spindle fibres form.

Metaphase
Chromosomes line up at the equator.
Spindle fibres attach to centromeres.

Anaphase
Centromeres split, spindle fibres pull sister chromatids to opposite poles.

Telophase
Chromosomes decondense.
New nuclear envelopes form around each set of chromosomes.

Cytokinesis
Cytoplasm divides to form two genetically identical daughter cells

Question 13

name all the stage of mitosis in order

Answer 13

interphase
prophase
metaphase
anaphase
telophase

Question 14

What happens in G1?

Answer 14

Cell growth, organelle production, protein synthesis.

Question 15

What happens in G2?

Answer 15

Further growth, protein synthesis, and DNA checks.

Question 16

What happens in S phase?

Answer 16

DNA is replicated; each chromosome forms two sister chromatids.