F222 - 2.1.1.2 - Mitosis 3.0 / 5 based on 1 rating ? Human BiologyASOCR Created by: hayley taylorCreated on: 24-11-12 19:36 What is mitosis used for? growth 1 of 25 What does mitosis produce? new cells 2 of 25 what can the new cells be used for? replaced damaged cells and repair tissues 3 of 25 Is the genitic infromation the same in the daughter call as the mother cell? yes 4 of 25 where is the DNA found? the chromosomes 5 of 25 What stage does the cell spend 90 percent of its time in? interphase 6 of 25 what two functions does the cell undergo during interphase? DNA replication and growth 7 of 25 what do the chromosomes look like during interphase? uncoiled, long and thin 8 of 25 what does the DNA consist of during prophase? two chromatids, help together by a centromere 9 of 25 what do the chromosomes look like in prophase? coiled and darkly stained 10 of 25 At what stage do the chromosomes become visable? prophase 11 of 25 how many chromosomes does a human cell contain? 46 (23 pairs) 12 of 25 Why does the human cell contain 46 chromosomes? we receive 23 chromosomes from our mother and 23 from our father 13 of 25 cells that contain 46 chromosomes in humans are called what? diploid 14 of 25 What happens to the nuclear envelope at the end of prophase? it breaks down 15 of 25 Where are the centrioles located? opposite poles off the cells 16 of 25 Centrioles send out tiny protein threads, what are these called? microtubules 17 of 25 The microtubles form a structure, what is it called? the spindle 18 of 25 When the centromeres of the chromosomes attach to the spindle they are pulled to the middle, also know as? the equator 19 of 25 In anaphase the centromeres divide the two sister chromatids to produce...? daughter chromosomes 20 of 25 What pulls the centromere appart? the spindle fibers 21 of 25 what happens to the spindle during telophase? breaks down 22 of 25 What forms around each group of chromosomes? a nuclear envelope 23 of 25 What happens to the DNA during telophase? the chromosomes unwind and become less visable 24 of 25 During cytoskenesis what happens to the cytoplasm and cell organelle? they half (approximately) 25 of 25
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