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42 Cards in this Set
- Front
- Back
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What is sexual reproduction? |
2 parents Sperm and egg |
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What is formed in the male reproductive organs? |
Sperm |
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What is formed in the female reproductive organs? |
Egg |
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What is the joining of the egg and sperm called? |
Fertilization |
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What is meiosis? |
The process of creating a sex cell |
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In what way is meiosis two similar to mitosis? |
Chromotids |
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What is a cell with pairs of chromosomes called? |
Haploid ----> Cell with pairs |
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Do centromeres divide at anaphase one or two? |
Two |
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Starting with one diploid cell, how many haploid sperm cells have formed after both phases of meiosis have been completed? |
4 |
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How are sex cells different from other cells in the body? |
Haploid and half the # of chromosomes
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What happens during fertilization? |
The sperm and egg join |
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Meiosis begins with one cell. How many cells are formed by the end of meiosis one? |
2 |
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What happens to the chromosomes of a cell in order for meiosis to begin?` |
They are copied/duplicated |
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How many cells are formed by the end of meiosis two? |
4 |
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What type of cell undergoes meiosis? |
Sex cells |
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What are homologous chromosome? |
Diploid |
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Sperm cell? |
Haploid |
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Liver cell? |
Diploid |
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Egg cell? |
Haploid |
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Stomach cell? |
Diploid |
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If the diploid number in a liver cell is 52, how many chromosomes are there in the egg of this organism? |
26 |
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During meiosis, the chromosome number? |
Reduced |
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Cells starting mitosis & meiosis begin with a __________ set of chromosomes? |
Diploid |
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How many times do cells divide during meiosis? |
2 |
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What happens during prophase one that diff. from the similar stage mitosis? |
They duplicate mate and cross over |
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`Crossing - over can be found in the stage of? |
Prophase One
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Is DNA copied before meiosis two? |
No |
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How many cells form at the end of meiosis two? |
2 |
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What are chromosomes? |
DNA that carry traits |
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What are chromotids? |
Are the copis |
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What are the homologous chromosomes? |
DNA |
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How are DNA and chromosomes related? |
Coiled up strands of DNA |
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Haploid? |
Sex cells; n |
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Diploid? |
Body cells; 2n |
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Mitosis? |
Identical |
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Meiosis? |
Similar |
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What does meiosis create? |
Sex cell/haploid |
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What is a sex chromosome? |
Gender |
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Who determines the sex of the offspring? |
Dad |
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What is the number of the sex chromosome? |
23 |
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XX? |
Female |
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XY? |
Male |
