HELP! AP biology lab!? - ap biology lab explain how mitosis leads to two daughter cells,
I'm in biology in high school Advanced Placement. We are a laboratory in mitosis and meiosis. I find it difficult to analyze questions to answer. If you do not help I appreciate it!
1.) Explain how mitosis yields two daughter cells, each of which is diploid and genetically identical with the original cell. What activities occur in the cell?
2.) How does mitosis differ in plant and animal cells? How does the plant mitosis accommodate a rigid wall, the rigid cell?
3.) What is the role of the centrosome (the area) of the centrioles? Is it necessary for mitosis? Justify your answer.
If anyone can help me, for all those it very much.
Any help I can help you!
Wednesday, February 17, 2010
Ap Biology Lab Explain How Mitosis Leads To Two Daughter Cells, HELP! AP Biology Lab!?
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1. Explain how mitosis yields two daughter cells, each of which is diploid and genetically identical with the original cell. What activities occur in the cell during interphase?
During the phase of the interphase of mitosis, which is the first thing that happens in the process of mitosis, chromosomes undergo a process in which) the synthesis of (or copies thereof and make an identical copy of itself the same. These copies are fused at the centromere and are called sister chromatids (identical to each other). During mitosis, the centromere is also replicated. If so, the division of the two copies. Then the cell divides into two daughter cells. Each cell now has an identical copy of the chromosomes of the cell of origin. The G1, S phase and G2 phaseAnd usually takes 90% of the cell cycle.
2. How does mitosis differ in plant and animal calls? How does the plant mitosis accommodate a rigid wall, the rigid cell?
In animal cells, during telophase create a contractile ring actin microfilaments contracts at the metaphase plate achieve an age furrow, the cytokenisis which the cytoplasm is distributed. In plants, trapped in this case instead of the vesicles, the Golgi during telophase. To create the movement of vesicles along microtubules, and a table of the cell. This is the cell wall of two new cells. Thus, the cell wall is produced by the plant mitosis. In animals, cells have a structure called centrioles. Centrioles create the spindle fibers pull the sister chromatids Apart. In plants, these fibers grow for themselves.
3. What is the function of the centrosome (the area) of the centrioles? Is it necessary for mitosis? Justify your answer.
Centrosomes are associated with the nuclear membrane in the interphase of mitosis. The function of the centrosome to microtubules gather and build their connection to the chromosomes of the mitotic spindle. All microtubules are produced from the centrosome. It is necessary for mitosis, because without them he would be the formation of microtubules, which means that the chromosomes are not separated centrosome. It is very necessary, because if they separate chromosomes in sperm or egg cells do not, it is a genetic disorder that can lead to, because children are alsoR. Therefore, very few chromosomes is important for the centrosome mitosis mitosis, and therefore is required.
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