Ap Biology Mitosis Case Study

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Please make payment to my paypal account soniasunny84@yahoo.com.I wasnt able to send my id via SOF.u can make the payment once I finish the entire questions. 1. List and describe the steps of mitosis. | What happens at these stages? | | 1. InterphaseDNA has replicated, but has not formed the condensed structure of chromosome. They remain as loosely coiled chromatin.The nuclear membrane is still intact to protect the DNA molecules from undergoing mutation. | | | 2. ProphaseThe DNA molecules progressively shortenand condense by coiling, to form chromosomes. The nuclear membrane andnucleolus are no longer visible.The spindle apparatus has migrate to opposite poles of the cell.. | | | 3. MetaphaseThe spindle fibres attach…show more content…
When haploid sperm meets haploid egg, a chain of events that begins with a single diploid cell and ends with an adult organism made of billions of cells is set in motion. The single cell divides into 2, and each of those 2 divide again, and this process continues geometrically along the following progression: 1, 2, 4, 8, 16, 32, 64, 128, and so on into the billions. Therefore, the first purpose of mitosis is growth. The second function of mitosis is repair. Cells are constantly wearing out and getting damaged and unless an organism replaces them at least as fast as they are lost, a gradual deterioration will…show more content…
Why is this different? Normal body cells have a complete set of chromosomes. If normal body cells from mom and dad fused to form a baby, the fertilized egg would have twice as many chromosomes as it should. Meiosis is sometimes called "reduction division" because it reduces the number of chromosomes to half the normal number so that when fusion of sperm and egg occurs, baby will have the correct number. Therefore the purpose of meiosis is to produce gametes; the sperm and eggs. 3. In what ways is meiosis different from mitosis? Be thorough. Comparison chart | Meiosis | Mitosis | Definition: | A type of cellular reproduction in which the number of chromosomes are reduced by half through the separation of homologous chromosomes in a diploid cell. | A process of asexual reproductionin which the cell divides in two producing a replica, with an equal number of chromosomes in haploid cell | Function: | sexual reproduction | Cellular Reproduction & general growth and repair of the body | Type ofReproduction: | Sexual | Asexual | Occurs in: | Humans, animals, plants, fungi | all organisms | Genetically: | different | identical | Crossing Over: | Yes, mixing of chromosomes can occur. | No, crossing over cannot occur.

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