Term
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Definition
| The process by which the number of chromosomes is reduced by half to form sex cells- sperm and eggs. |
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Term
| What are the male sex cells? |
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Definition
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Term
| What are the female sex cells? |
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Definition
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Term
| What does the chromosome theory of inheritance say? |
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Definition
| Genes are carried from parents to their offspring on chromosomes. |
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Term
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Definition
| Every chromosome in the parent cell is copied. Cromatids are held together by centromeres. |
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Term
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Definition
| The chromosome pairs separate and are distributed to two different cells. |
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Term
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Definition
| The centromeres that hold the chromosomes together split and the chromatids separate. Single chromosomes move to the opposite ends of the cell. |
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Term
| What are the results of Meiosis? |
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Definition
| Four sex cells are produced. Each cell has half the number of chromosomes that the parent cell had in the beginning. |
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Term
| If each sex cell has 23 chromosomes, but humans have 46 chromosomes, where do the other 23 chromosomes come from? |
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Definition
| Each parent contributes 23 chromosomes to the offspring. So each offspring will receive 23 from the sperm cell and 23 from the egg cell. |
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Term
| How are chromosomes and genes related? |
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Definition
| Chromosomes are made up of many genes joined together. |
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