Awimboye

1) What is pupillary reflex and why does it occur? It is a particular instance of cell division necessary for sexualityual reproduction. Meiosis produces gametes and involves a diminution in the amount of genetic material. 2) What is the relationship in the midst of gametes and a zygote? Gametes are a adept sex cell, male or female and a zygote is some(prenominal) male and female sex cells to halther. 3) Explain the difference amongst Haploid and Diploid cells. The haploid cell contains only angiotensin converting enzyme chromosome from each pair of homologic chromosomes. The diploid cell contains some(prenominal) chromosomes of each pair of homologous chromosomes. 4) Meiosis is known as reduction division 1 to 4. What does that mean? This means that ace cell at the beginning of meiosis becomes 4 cells in one case meiosis is completed. 5) What are the differences between the 2 phases of Meiosis? Meiosis I, which is also known as reduction divis ion, is where 2n reduces to n. Meiosis II is where ii meiotic divisions occur. 6) Describe the 4 phases of each stage. In prophase I, each pair of homologous chromosomes lines up side by side. In metaphase I, the pairs line up at the equator of the cell and pergola fibres attach to the centromere of each homologous chromosome.

In anaphase I, the homologous chromosomes separate and move to the other poles of the cell. The chromosome event is reduced from 2n to n. In telophase I, the homologous chromosomes begin to uncoil and the stiletto heel fibres disappear. Cytokinesis takes place and two cells form, bo th of which are haploid cells. In prophase I! I, the nuclear membrane dissolves and the spindle fibres begin to form. In metaphase II, the chromosomes conform along the equatorial plate. The chromatids remain pinned together by the centromere. In anaphase II, the chromatids that were held by the centromere break apart and move to the opposite poles. This stage ends when the nuclear membrane begins to form around the one-on-one chromatids. In telophase II, nuclear division and the division of...If you want to get a just essay, order it on our website: OrderCustomPaper.com

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