题目内容

Animal and plant cells have many things in common, but during cell division they have very distinct features. Which of the following phases are very different in plant and animal cells?

A. prophase
B. metaphase
C. anaphase
D. cytokinesis

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At which stage of the cell cycle is each chromosome composed of the two chromatids in preparation for mitosis?

A. G1
B. S
C. M
D. G2

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Which of the following normally occurs during mitosis?

A. Replicated chromosomes line up on the equatorial plate.
B. Homologous chromosomes pair.
C. Unduplicated chromosomes move into the center of the cell.
D. Chromatids pair up and line up in the center of the cell.

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Cell division divides the cell into two daughter cells with identical genetic material, DNA. DNA is not destroyed when being passed along from one generation to the next. A cell dividing duplicates its DNA into two copies and then splits into two separate cells. A cell's genetic information is packaged as DNA and is known as its genome. In prokaryotes the process of the cell duplicating with identical daughter cells is known as

A. conjugation.
B. binary fission.
C. meiosis.
D. division.

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The ability of organisms to reproduce their kind is the one characteristic that best distinguishes living things from nonliving matter. The continuity of life is based on the reproduction of cells, or cell division. Cell division functions in reproduction and .

A. growth and repair
B. growth and development
C. repair and management
D. repair and development

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Animal and plant cells have many things in common, but during cell division they have very distinct features. Which of the following phases are very different in plant and animal cells?

A. prophase B. metaphase C. anaphase D. cytokinesis

At which stage of the cell cycle is each chromosome composed of the two chromatids in preparation for mitosis?

Which of the following normally occurs during mitosis?

The ability of organisms to reproduce their kind is the one characteristic that best distinguishes living things from nonliving matter. The continuity of life is based on the reproduction of cells, or cell division. Cell division functions in reproduction ____ and ____.

A. prophase
B. metaphase
C. anaphase
D. cytokinesis

The ability of organisms to reproduce their kind is the one characteristic that best distinguishes living things from nonliving matter. The continuity of life is based on the reproduction of cells, or cell division. Cell division functions in reproduction and .