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Q: Differentiate meiosis vs. mitosis
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During meosis I __________ are segregated, with each pair of chromosomes __________ Crossing over ___________
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- The spindle attaches to chromosomes at the _______. a. centriole b. contractile ring c. centromere d. centrosomeIndicate the stage of mitosis (interphase = I, prophase = P, metaphase = M, anaphase = A, telophase = T) during which each of the following events occur. chromatid doublets separate to individual chromosomescentriole replicatesreplicated chromosomes (chromatid doublets) are arranged in single file next to one another at the cell's equatornuclear membrane is disappearingspindle fibers form and become visiblecell plate (plant) or cleavage furrow (animal) forms and is visiblechromosomes are at opposite poles of the cell; cytokinesis is almost completedchromosomes (chromatids) first become visible as long thin strandsDNA (chromosome) replication occurs[Choose] Mitosis [ Choose Interphase Programed cell death The death of a cell due to the accumulation of oncogenes Observable characteristsic of an organlsm resulting from the organisms genotype Chromosome A haplaid cell produced in sexually reproducing organisms One of two or more alternative versions of a gene Melosis The physical location of an organisms genes. Composed of DNA and proteins. Division of a cukaryotic cells nuclear content Crossing over In this phase, the cell is doing what the cell does; between successive miotic division A fundamental source of genetic diversity across much of life Gamete Results in the halving of a dipolid organisms chromosomes A diplold organism with one dominant and one recessive allele Phenotype A diplold cell which results from mitosis Heterozygote (Choose] Allele (Choose] Apoptosls (Choose)
- Beginning with the G1 phase of the cell cycle, describe the levelof compaction of the eukaryotic chromosome. How does thelevel of compaction change as the cell progresses through thecell cycle? Why is it necessary to further compact the chromatinduring mitosis?Various stages of cell division Growing spindle fibres Disappearing nuckar membrane Centrio les migrate toward poles Replicated chromosomeLoune x Untitle xR A MONE X HO No X Mitoe x x dochub.com/zmelvin002//YpbBonNVrx04xQ2RMX93/7/28maryon-melvin mitosisws pdf D Zama x Goes & BI O Zamaryon tMein UNBLOCKED 66-u FORTNITE FAILS & O dioworthiv iof7 (7 WeLove Pepp foe townioad Mus Shoute won Mefvin - Mitosis-ws.pdf Upgrade to Pro 5CA /.0. av. a Sign- 12 Helvetica - TI 2 1 BI 1in -- Number the following sbx dlagrams of the stages of mitosis in animal cels in the proper order. Label each stage with the proper pame. anaphaseo prophase prometaphase
- Prophase prometaphase metaphase anaphase telophaseof my celle chose are wels smaller than normal. According to Model 1, what part(e) of the cell cycle is (ere) ou likely being affected? Some cancerus me 7. In Model 1, if the length of the arrow represents time, then for those cancerous cells, what hap pens to the time that is necessary for the cell cycle? What implication might this have for doctors who are treating cancer patients? Why? Living things must grow and develop. At times they suffer injuries or damage, or cells simply wear out. New cells must be formed for the organism to survive. What process must occur to make a new, properly- functioning cell? Model 1 - Mitosis as Part of the Cell Cycle Prophase Metaphase Anaphase Mitosis How do living things grow and repair themselves! Replicated chromosome (2 sister chromatids) 0000 * Centriole Spindle fibers Nuclear membrane Telophase 1. Refer to Model 1. List the four phases in the mitosis process. 2. Where is mitosis in the cell cycle? Before 3. What three phases of the cell cycle…eiosis mod e correct order. 4 Compare the models of the two processes. List all of the differences you can see between meiosis and mitosis below. Northern Virginia Community Collego 188 I BIO 142 Human Anatomy and Physiology II
- Which phase is described below? The chromosomes condense, Each is made of two sister chromatids,(looks) like an "X" Each sister is a clone, the closest of kin, And acentromere connects them like siamese twinsThe nucleolus disappears it melts away, as the cell takes a ribosomeproduction holiday, the centrosomes separate, start spindle formationfor separating chromatids and cell elongation.What are the number and type of chromosomes inthe karyotype of a human somatic cell? How do thechromosomes of a male and a female differ?Why is a chromosome with two centromeres (adicentric chromosome) unstable? Would a backup cen-tromere not be a good thing for a chromosome, giving ittwo chances to form a kinetochore and attach to microtu-bules during mitosis? Would that not help to ensure thatthe chromosome did not get left behind at mitosis?