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Homologous chromosomes ______. |
Carry genes controlling the same inherited characteristics |
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Chromosomes that do not determine the sex of an individual are ______. |
Non homologous chromosomes |
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In meiosis, how does prophase I differ from prophase II? |
During prophase I there is one diploid cell; during prophase II there are two haploid cells |
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During metaphase I, ______. |
Homologous chromosomes line up in the middle of the cell |
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For a species with four pairs of chromosomes, ______ chromosome combinations are possible. |
16 |
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Crossing over during prophase I results in ______. |
Genetic recombination |
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A karyotype (a chromosome display) would be unable to determine ______. |
Eye color |
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How many chromosomes can gamete posses as a result of a nondisjunction? |
n+1 or n-1 |
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Upon completion of telophase I and cytokinesis, there is (are) ______ cell(s). |
two |
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Ordinary cell division produces two daughter cells that are genetically identical. This type of cell division is more important for all of the following functions EXCEPT? |
Production of sperm and egg cells |
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Which of the following will help prevent cancer and increase survival? |
Seek early detection of tumors |
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Chromatin consists of ______. |
DNA and protein |
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Sister chromatids are joined at the ______. |
Centromere |
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Which of the following occurs during interphase? |
Chromosome duplication |
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The cell cycle results in the production of ______. |
Two cells, each with the same amount of genetic material and same genetic information |
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The correct sequence of stages in mitosis is ______. |
Prophase, metaphase, anaphase, telophase (PMAT) |
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During metaphase, ______. |
Chromosomes line up in the middle of the cell |
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A cell that completed the cell cycle without undergoing cytokinesis would ______. |
Have two nuclei |
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Cytokinesis typically begins during the ______ stage of mitosis. |
Telophase |
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Plant cell cytokinesis differs from animal cell cytokinesis because ______. |
Plant cells form a cell plate and animal cells do not |
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With respect to her sex chromosomes, Amanda would be designated as ______. |
XO |
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Amanda’s abnormal number of sex chromosomes resulted from ______. |
Nondisjunction |
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