Diploid onion cells have 16 chromosomes each. After a diploid onion cell does mitosis and cytokinesis, how many chromosomes should each daughter cell have?
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A: Mitosis It a kind of division in a cell cycle where two identical daughter cell is produced.
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Q: so are the cells in mitosis identical?
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A: Answer is 2.) no - they come from mitosis.
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Q: What would happen if the sister chromatids did not split equally during anaphase of mitosis.
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A: INTRODUCTION Mitosis This is a process by which a cell divides to form two identical daughter cells.…
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Q: A cell has 38 chromosomes. After mitosis and cell division, one daughter cell has 39 chromosomes and…
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Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
- Diploid onion cells have 16 chromosomes each. After a diploid onion cell does mitosis and cytokinesis, how many chromosomes should each daughter cell have?
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- Imagine a nucleus that has 10 chromosomes. How many chromosomes does it have before prophase begins? How many chromosomes does each daughter nucleus have after telophase has been completed? How many chromatids are present in the one mother nucleus before prophase begins? How many chromatids are present in each daughter nucleus after telophase has been completed? How many chromatids are present if you add together all chromatids in both daughter nuclei after telophase has been completed?In Coleus , the somatic cells are diploid with 24 chromosomes. How many of each of the following is present in each cell at the stage of mitosis and meiosis indicated below? kinetochore at prophase chromosomes at anaphase chromatids at metaphase 1 chromosomes at telophase after cytokinesis centromeres at anaphase chromosomes at telophase II after cytokinesis centromere at anaphase I chromatids at metaphaseA Common Wombat has 14 chromosomes in one of its somatic (nonreproductive) cells. One of these cells goes into mitosis. How many cells result, and how many chromosomes does each one of these cells have?
- Consider a diploid organism with 18 chromosomes. Answer each question on a per cell basis. How many chromosomes are there during metaphase? How many functional centromeres are there during anaphase? How many chromosomes are there during telophase I after cytokinesis? How many chromosomes are there during prophase II? How many chromatids are there in anaphase II? How many kinds of chromosomes are there?What is the time span of each stage of mitosis? Arrange the stages from shortest to longest.Can be more than one answer: Select all of the following that are true of MEIOSIS but not of MITOSIS. a) cell division occurs during cytokinesis b) results in two identical daughter cells c) halves the number of chromosomes in a cell d) spindle fibers contract during anaphase e) tetrads line up on metaphase plate
- Name the stage of cell cycle at which one of the following events occur:(i) Chromosomes are moved to spindle equator.(ii) Centromere splits and chromatids separate.(iii) Pairing between homologous chromosomes takes place.(iv) Crossing over between homologous chromosomes takes place.Even though cytokinesis is included with Mitosis, we generally consider it to be its own phase. Why? by the time cytokinesis occurs, the cell has already split by the time cytokinesis occurs, the cytoplasm has already split by the time cytokinesis occurs, the nucleus has already split by the time cytokinesis occurs, the cell has copied all of its chromosomesIn meiosis, each centromere has a spindle fiber attached only to one side. In mitosis, each centromere has a spindle attached to how many sides?
- Which of the following statements are true regarding mitosis in humans? 23 pairs of homologous chromosomes are separated four haploid gametes are produced in males 46 pairs of homologous chromosomes are separated two genetically identical daughter cells are produced 23 pairs of sister chromatids are separated 46pairs of sister chromatids are separated 1 haploid gamete and 2 polar bodies are produced in females. 2 3 1 4 . 5 6 I 7. .. (a) Identify the point in mitosis at which separase cleaves the protein complex that holds sister chromatid pairs together. In normal cells, separase is kept in an inactive state until it is needed. Explain how the progression of cells past sequential cell cycle checkpoints and the activity of enzymes such as separase is controlled by interactions between two major groups of regulatory proteins. (b) Identify an independent variable in the experiment graphed in Figure 1. Based on the data in Figure 1, identify a control that shows that Sepin-1 rather than something else in the culture medium is inhibiting the growth of the cancer cells. (c) Based on the data in Table 1, describe the general relationship between the sensitivity of cells to Sepin-1 and the concentration of separase in the cells. Use the Figure 1 data to calculate the ratio between the amount of Sepin-1 required to kill 50% of the cells in the cell line that is most sensitive to the compound and the…In what sense are the two daughter cells produced by mitosis identical?