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a. Each organism must inherit a single copy of every gene from both its parents. b. When an organism produces its own gametes, those two sets of genes must be separated from each other. |
List the two things that Mendel’s principles of genetics requires in order to be true. |
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Each of the chromosomes in the set from the male parent has a corresponding chromosome from the female parent. |
What does it mean when two sets of chromosomes are homologous? |
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a. 2N b. Contains two sets of homologous chromosomes |
Give each way to describe a diploid cell. |
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4. |
What is the number of chromosomes in a haploid Drosophilia cell? |
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The number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell. |
Why is meiosis described as a process of reduction division? |
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a. Meiosis I b. Meiosis II |
What are the two distinct divisions of meiosis? |
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True. |
Is the following sentence true or false? The diploid cell that enters meiosis becomes 4 haploid cells at the end of meiosis. |
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A tetrad forms when each chromosome pairs with its corresponding homologous chromosome. |
How does a tetrad form in prophase I of meiosis? |
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4. |
What is the number of chromatids in a tetrad? |
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When homologous chromosomes in tetrads exchange portions of their chromatids, alleles are exchanged between the homologous chromosomes to produce new combinations of alleles. |
What results from the process of crossing-over during prophase I? |
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a. During meiosis I, homologous chromosomes separate. b. During anaphase II, the paired chromatids separate. |
What is true about meiosis? |
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Haploid gametes produced in females. |
What are eggs? |
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Haploid gametes produced in males. |
What are sperm? |
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Cells produced in females that do not participate in reproduction. |
What are polar bodies? |
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a. Mitosis begins with a diploid cell. b. Meiosis begins with a diploid cell. |
What is true about mitosis and meiosis? |
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