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9 Cards in this Set
- Front
- Back
Sister chromatids
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two halves of the replicated chromosome. (After DNA replication.)
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chromosome
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DNA wound tightly and organized; This is the form of DNA during mitosis and meiosis.
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centromere
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the central portion of the chromosome that connects the sister chromatids
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homologous chromosomes
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two chromosomes coding for the same type of info (ex: eye color); one from each parent. Together they form a tetrad (blue and red in picture)
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diploid
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normal number of chromosomes; stands for 2 of each kind; represented by 2n. 2n=46 in humans.
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haploid
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only one set of each kind of chromosome (half of the pair); represented by n. n=23 in humans
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germ cells
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cells in testes or ovaries that produce sperm or egg through meiosis.
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crossing over
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Gene exchange on chromosomes that can occur during the first stage of meiosis.
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centriole
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cell organelle that attaches to chromosomes using spindle fibers; used in both mitosis and meiosis.
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