mitosis

Question 1

mitosis

Answer 1

type of cell division that produces two genetrically identical daughter cells , each with the same number of chromosomes as the parent cell

Question 2

main functions of mitosis

Answer 2

growth
repair
asexual reproduction

Question 3

what are the stages of cell cycle

Answer 3

interphase
mitosis
cytokinesis

Question 4

what happens during interphase

Answer 4

Growth 1- cell grows and carries out normal function
synthesis- DNA is replicated
growth 2- cell prepares for mitosis, organelles duplicate

Question 5

what are the stages of mitosis

Answer 5

prophase
metaphase
anaphase
telophase

Question 6

what happens during prophase

Answer 6

1. chromosomes condense and become visible
2. nuclear membrane breaks down
3. centrioles move to opposite poles
4. spindle fibres start forming

Question 7

what happens during metaphase

Answer 7

1. chromosomes align at the equator
2. spindle fibres attach to the centromeres of chromosomes

Question 8

what happens during anaphase

Answer 8

1. spindle fibres contract which pulls sister chromatids apart
2. chromatids move to opposite poles of the cell

Question 9

what happens during telophase

Answer 9

1. chromatids condense into chromatin
2. nuclear membranes reform around each set of chromosome
3. spindle fibres break down

Question 10

what is cytokinesis and when does it occur

Answer 10

division of the cytoplasm, occurs after telophase forming 2 separate daughter cells

Question 11

how does cytokineses differ in plants and animals

Answer 11

animals- cleavage furrow forms, pinching the cell into 2

plant- cell plate forms, developing into a new cell wall

Question 12

mitotic index

Answer 12

measure of proportion of cells that are dividing in the tissue sample