Biology

6. Meiosis and mitosis describes the process by which cubicles divide, either by agamous or sexual reproduction to produce a young organism. Meiosis is a institute of carrell division that produces gametes in humans these are egg cadres and sperms, each with reduced or halved number of chromosomes. The number of chromosomes is restored when two gametes fuse together to plant a zygote. Meioses produces haploid female child cells that are genetically unadorned from each other and from the parent cell. However, mitosis is a form of cell division that produces daughter cells identical to the parent during repair or growth. Each cell contains the same genetic code as the parent cell, it is able to do this because it has copied its own chromosomes earlier to cell division. Meiosis consists of two divisions whilst mitosis is followed in one division. 7.

quadruple strains: Prophase, Metaphase, Anaphase and Telophase Prophase: nuclear envelope disintegrates, centrioles (microtubules) begin to form on both(prenominal) ends of the cell, and spindle fibers forming Metaphase: (Meta = middle) spindle fibers attach to centromere (centromere --> holds the sister chromatids together), chromosomes product line up in the MIDDLE (connected to spindle fibers) Anaphase: (Ana --> away) The spindle fibers give in up the sister chromatids apart and AWAY from eachother to opposite ends of the cell. Telophase: nuclear envelope begins re-forming. Spindle fibers disappear, cell ready to separate into daughter cells. 8. 1. Mitotic phase During mitosis the chromosomes are paired and then divided precedent to cell division! G1phase: During this phase, the cells make a decision to either exit the cell cycle or become nonoperational or terminally differentiated or to continue dividing. S phase This is an chief(prenominal) stage of the cell cycle during which the desoxyribonucleic acid is replicated. This is the DNA subtraction phase. Additionally, some specialized proteins like histones are also synthesized during S phase. G2 phase: This...If you want to get a bounteous essay, ball club it on our website: BestEssayCheap.com

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