Mitosis Cytokinesis Exercise B: Stages of Mitosis For each stage of the cell cyc

Question

Mitosis Cytokinesis Exercise B: Stages of Mitosis For each stage of the cell cycle, fill in the blanks with the number of chromosomes, chromatids and molecules of DNA, based on what you saw in the chromosome simulation 1. # of Chromatids per | # of Molecules of DNA Stage # of Chromosomes Chromosome per Chromosome 2 Interphase G, Interphase S Interphase G Prophase Metaphase Anaphase Telophase Following cytokinesis (per daughter cell) 2. Match the correct stage of the cell cycle to the following events. Select from: Interphase G,, S, G, Mitosis, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis 1. The nuclear membrane disappears, and chromosomes appear. 2. Centrioles are replicated 3. Chromosomes are arranged in a single file in the middle of the cell 4. Chromatids separate and move to opposite poles of the cell. 5. Cell plate forms in plant cells. 6. DNA replication happens General Biology Laboratory 108

Explanation / Answer

Mitosis is a type of cell division in which one cell (the mother) divides to produce two new cells (the daughters) that are genetically identical to itself. In the context of the cell cycle, mitosis is the part of the division process in which the DNA of the cell's nucleus is split into two equal sets of chromosomes.

Cytokinesis, the division of the cytoplasm to form two new cells, overlaps with the final stages of mitosis. It may start in either anaphase or telophase, depending on the cell, and finishes shortly after telophase.

Stage no. of chromosomes no. of chromatids per no.of molecules

  chromosomes of DNA per   chromosomes

Interphase G1 2                                              0 1                     

Interphase S 2                                              0 2

Interphase G2 0                                              2 2

Prophase 4 0                                1         

Metaphase 4 0 1

Anaphase 4 0                                  1

Telophase 4 0                                  1

Following cytokinesis 2 0                                  1

Match the Correct stage of the cell cycle of the following events, selects from Interphase, G1, S, G2, Mitosis, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis.

1. Prophase the nuclear membrane disappear and chromosomes appear

2. S Phase Centriole are replicated

3. Metaphase Chromosomes are arranged in a single file in the middle of the cell.

4. Anaphase Chromatid separate and move to opposite pole of the cell.

5. Cytokinesis Cell plate forms in the plant cells

6. S Phase DNA replications happens

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