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MC - Mitosis

Multicellular Organisms - Producing new cells

QuestionAnswer
Why do multicellular organisms need to carry out cell division? for growth and repair of damaged cells
What word describes a cell with 2 matching sets of chromosomes? diploid
Why is it important that the new daughter cells have the same number of chromosomes as the original parent cell? to maintain the chromosome complement
Describe the chromosomes in the first stage of mitosis. thread-like structures
What happens to the chromosomes during stage 2 of mitosis? they condense and replicate
What happens to the nuclear membrane during stage 2 of mitosis? starts to break down
Where do the chromosomes line up during stage 3 of mitosis? equator (middle) of the cell
What attaches to the chromosomes during stage 3 of mitosis? spindle fibres
What do the spindle fibres pull apart during stage 4 of mitosis? chromatids
What reforms around the groups of chromosomes during stage 5 of mitosis? new nuclear membrane
What starts to happen to the cytoplasm during stage 5 of mitosis? divides
What is produced during stage 6 of mitosis? 2 new identical diploid daughter cells
If a parent cell has 16 chromosomes, how many chromosomes will each of the daughter cells have? 16
If a single mother cell goes through 5 rounds of division, how many daughter cells will be produced? 32
If a single mother cell goes through 7 rounds of division, how many daughter cells will be produced? 128
What happens after the following statement: 'Chromosomes line up at the equator and spindle fibres form' Spindle fibres pull chromatids to opposite poles
What happens after the following statement: 'Spindle fibres pull chromatids to opposite poles' Nuclear membrane reforms around chromosomes, cytoplasm divides
What happens before the following statement: 'Chromosomes line up at the equator and spindle fibres form' Chromosomes condense and replicate, nuclear membrane breaksdown
Why is it important to maintain the diploid chromosome complement? To ensure that no genetic information is lost.
Why would a damaged skin cell go through mitosis. To repair the damaged skin.
Calculate the number of times the single skin cell would have to divide to form 128 cells in total. 7
Calculate the number of times the single skin cell would have to divide to form 32 cells in total. 5
Calculate the number of times the single skin cell would have to divide to form 16 cells in total. 4
Created by: StNiniansHS
 

 



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