Mitosis and Meiosis

The chromosome number of a cell produced by mitotic cell division is represented by 2n. If that cell had produced by meiotic cell division, its chromosome number would be represented by:

• n

• n/2

• 2n

• 4n

Which row indicates the correct process for each event indicated

• 1

• 2

• 3

• 4

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Down syndrome is a genetic disorder caused by the presence of an extra chromosome in the body cells of humans. This extra chromosome occurs in a gamete as a result of:

• an error in the process of cloning

• an error in meiotic cell division

• a gene mutation

• replication of a single chromosome during mitosis

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In human skin cells, the products of a normal mitotic division are:

• 4 diploid cells

• 2 diploid cells

• 2 monoploid cells

• 4 monoploid cells

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One difference between cell division in plant cells and animal cells (zoom in the picture)

• centrioles form in plant cells but not in animal cells

• plants form a cell plate between daughter cells but animal do not

• a double nucleus forms in the animal cell but not in the plant cell

• more cytoplasm form in the animal cells than in plant cells

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Which part of the structure is represented by arrow 2:

• centriole

• centrosome

• centromere

• chromatid

Which part of the structure is represented by arrow 4:

• chromatid

• chromosome

• autosome

• allele

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The end of meiosis results in  ____ to each other.

• 2 cells that are identical

• 4 cells that are identical

• 2 cells that are not identical

• 4 cells that are not identical

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Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?

• In order for genetic information to be transferred into daughter cells.

• In order for the DNA to be contained in the nucleus.

• In order for the cell to be able to increase in size.

• In order for the cell to re-order the DNA sequencing in the new cells.

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The term chromosome comes from the Greek words for color (chroma) and body (soma). They are cell structures, or bodies, that are strongly stained by some colorful dyes used in research. What is a chromosome?

• condensed DNA 

• uncoiled DNA

• 2 genes

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