Biology

6. Meiosis and mitosis describes the process by which cubicles divide, either by apomictic or sexual replication to produce a upstart organism. Meiosis is a imbed of carrell division that produces gametes in humans these are junkie mobile phones and sperms, each with reduced or halved number of chromosomes. The number of chromosomes is restored when cardinal gametes fuse to perplexher to edition a zygote. Meioses produces haploid lady friend cadres that are genetically plain from each other and from the bring up cell. However, mitosis is a form of cell division that produces missy cells resembling to the parent during repair or growth. Each cell contains the said(prenominal) 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.

quartette strains: Prostage, Metaphase, Anaphase and Telophase Prophase: nuclear envelope disintegrates, centrioles (microtubules) bulge out to form on two ends of the cell, and spindle fibers forming Metaphase: (Meta = middle) spindle fibers appropriate to centromere (centromere --> holds the sister chromatids together), chromosomes occupation up in the marrow (connected to spindle fibers) Anaphase: (Ana --> away) The spindle fibers beat up the sister chromatids aside and AWAY from eachother to opposite ends of the cell. Telophase: thermonuclear envelope begins re-forming. Spindle fibers disappear, cell ready to separate into daughter cells. 8. 1. Mitotic phase During mitosis the chromosomes are diametrical and then divided foregoing to cell division G1phase: During this phase, the cells make a decision to either sales outlet the cell wheel or become dormant or terminally differentiated or to continue dividing. S phase This is an chief(prenominal) stage of the cell cycle during which the DNA is replicated. This is the DNA deduction phase. Additionally, some specialized proteins akin histones are also synthesized during S phase. G2 phase: This...If you want to get a full essay, goon club it on our website: Orderessay

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