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18 Cards in this Set
- Front
- Back
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Understand that Meiosis only occurs in organisms that reproduce.......
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sexually
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Organisms that reproduce asexually use the process of......
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asexual reproduction
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Many cells in our bodies still go through mitosis, just not our.....
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Sex Cells
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How many chromosomes does the human body have?
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46
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This means there are ____ pairs.
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23
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Each individual chromosome is call a _______ chromosome.
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Homologus
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Human sex cells have ___ chromosomes.
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23
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Male sex cell is.....
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sperm
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Female sex cell is.....
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egg
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In order for them to reproduce, what must they do?
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Unite
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When sex cells (sperm and egg) unite to form a new organism, the total number of chromosomes in the new organism is _____???
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46
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How many of each cells are used?
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23 from the sperm and 23 from the egg.
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To form sex cells, the chromosomes are copied once and then the nucleus divides _____.
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twice
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The resulting sperm and eggs have _____ the number of chromosomes.
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Half
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The process is called .......
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Meiosis
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Sex chromosomes determine weather the _____ is male of female.
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Offspring
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Why is it important that sex cell have half the usual number of chromosomes?
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the 2 halves combine during reproduction.
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What types of chromosomes make a male and what types make a female?
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Male: X & Y
Female: X & X |
