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Genetics From Genes to Genomes Study Set 1

Biology

Quiz 4 :

The Chromosome Theory of Inheritance

Quiz 4 :

The Chromosome Theory of Inheritance

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During which of the following stages of the cell cycle would a chromosome consist of only a single chromatid?
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A

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The cells that undergo meiosis in males are
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A

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Microtubules that originate at opposite centrosomes and interdigitate near the cell's equator without attaching to chromosomes are the
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B

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Crossing-over between homologous chromosomes occurs at which of the following stages of meiosis?
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Nondisjunction can occur at either the first or second division of meiosis.XXY individuals could arise from nondisjunction at the ________ meiotic division in the ________.
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The stage of mitosis when sister chromatids separate from each other and migrate to opposite poles of a cell is called
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A chromosome with two arms of similar length is referred to as
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The chromosomal structure to which spindle fibers attach during the mitotic divisions is the
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In Drosophila virilis, somatic cell nuclei contain 12 chromosomes while sperm nuclei contain only 6 chromosomes.What does n equal for this species?
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Mitosis results in ________ chromosome number, whereas meiosis results in ________ chromosome number.
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Which types of chromosomes provide the basis for sex determination in most mammals?
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Premeiotic germ cells that divide mitotically in females are
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The mitotic stage during which chromosomes begin attaching to spindle fibers and moving randomly and reversibly to the centrosomes is
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Which of the following events occurs during mitosis but not during meiosis?
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Humans have 22 pairs of autosomes plus one sex chromosome pair.How many autosomes are present in a normal human primary spermatocyte?
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Nondisjunction can occur at either the first or second division of meiosis.XYY individuals would most likely arise from nondisjunction at the ________ meiotic division in the ________.
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The stage of mitosis when chromosomes condense to form rod-shaped structures visible under the microscope is called
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Drosophila melanogaster has four pairs of chromosomes (including a pair of sex chromosomes).Sperm from this species are formed by a meiotic process in which homologous chromosomes pair and segregate but do not undergo crossing-over.How many genetically different kinds of sperm could be produced by a Drosophila melanogaster male (XY)?
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At which of the following stages of meiosis would homologous chromosomes be paired?
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Which of the following statements applies to homologous nonsister chromatids?
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