Practice Quiz 8: Cell Reproduction Flashcards

In a diploid cell with 5 chromosome pairs (2n = 10), how many sister chromatids will be found in a nucleus at prophase of mitosis?

Movement of the chromosomes during anaphase would be most affected by a drug that prevents which of the following events in mitosis and cell division?

Starting with a fertilized egg (zygote), a series of six cell divisions would produce an early embryo with how many cells?

In the figure, G1 is represented by which numbered part(s) of the cycle?

Through a microscope, you can see a cell plate beginning to develop across the middle of a cell and nuclei forming on either side of the cell plate. This cell is most likely ________.
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The unlettered circle at the top of the figure shows a diploid nucleus with four chromosomes that have not yet replicated. There are two pairs of homologous chromosomes, one long and the other short. One haploid set is black, and the other is gray. The circles labeled A to E show various combinations of these chromosomes. What is the correct chromosomal condition at prometaphase of mitosis?

Which of the following events occurs during interphase of the cell cycle?
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The data in the table were obtained from a study of the length of time spent in each phase of the cell cycle by cells of three eukaryotic organisms designated beta, delta, and gamma. What is the best explanation for the data associated with delta cells?

What is the name of the microtubule-organizing center found in animal cells as an identifiable structure present during all phases of the cell cycle?

Besides the ability of some cancer cells to over proliferate, which of the following situations might logically result in a tumor?

For a chemotherapeutic drug to be useful for treating cancer cells, which of the following characteristics is most desirable?
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At which phase of the cell cycle do centrioles begin to move apart in animal cells?

The beginning of anaphase is indicated by which of the following processes?

During which phase of mitosis do the chromatids become chromosomes?

In the cells of many eukaryotic species, the nuclear envelope has to disappear to permit which of the following events in the cell cycle?

Metaphase is characterized by ________.

How is plant cell cytokinesis different from animal cell cytokinesis?

G1 is associated with which of the following cellular events?

If there are 40 centromeres in a cell at anaphase of mitosis, how many chromosomes will be found in each daughter cell following cytokinesis?

Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus. The measured DNA levels ranged from 3 to 6 picograms per nucleus. In which stage of the cell cycle did the nucleus contain 6 picograms of DNA?

If a cell at metaphase of mitosis contains 20 sister chromatids, how many chromosomes will be present in a G1 cell?

Eukaryotic chromosomes are composed of which of the following macromolecules?

If the cell whose nuclear material is shown in the figure continues toward completion of mitosis, which of the following events would occur next?

The M phase checkpoint ensures that all chromosomes are attached to the mitotic spindle. If this does not happen, cells would most likely be arrested in ________.

The mitotic spindle plays a critical role in which of the following processes?

Cells from advanced malignant tumors often have very abnormal chromosomes and an abnormal number of chromosomes. What might explain the association between malignant tumors and chromosomal abnormalities?