The Difference Between Mitosis And Meiosis

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1. What is the difference between mitosis and meiosis? Define each term, and then explain how each process contributes differently to the conception and growth of a zygote.

The two ways cell division can occur are through mitosis and meiosis. In mitosis, a cell produces two clones of itself, each with the same number of chromosomes. In meiosis, a cell will produce four cells called gametes through the process of spermatogenesis and oogenesis. Gametes are most commonly known as sperm cells in males and egg cell in females. Unlike mitosis, the gametes that meiosis produces are not clones of the original cell as each gamete has exactly had as many chromosomes of the original cell and are all different from one another (siblings). Mitosis can
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Phenotype is what you are physically able to see, the visible or observable expression of the results of genes combined with environmental factors that could influence the organism’s appearance or behavior. Occasionally when the same genotype is subjected to different environments, it can produce a wide range of phenotypes. During class, we listened to a podcast in which individuals, who had predecessors who had experienced famine, were found to be more resistant to starvation. Individuals who did not have predecessors who experience famine were found to be less resistant to starvation. This could be a potential reason for food hoarding and other characteristics of an individual’s …show more content…
In passive transport, after final cell division, primitive neurons move away from the proliferative zone but only a short distance. These cells will then be pushed further away by the emergence of newer neuron, meaning the earliest generated cells will be the ones furthest from the proliferative zone. The second mode of migration is along the glial cells. Glial cells form a scaffold from the margin of the proliferative zone to the outer edge. New neurons will attach and propel themselves along these glial cells until it reaches its destination and detaches. Finally, the Differentiation stage takes place. Cell differentiation begins once the neurons have reached their last stop and begin to generate axons and dendrites. They will also acquire enzymes necessary for them to produce neurotransmitters and receptors to receive synaptic

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