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16 Cards in this Set
- Front
- Back
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Define Variation |
The differences between organisms |
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Define Phenotype |
The physical appearance of an organism |
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Define inherited |
Characteristics from parents |
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Define Environmental |
Characteristics from life choices / surroundings |
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Define Meisis |
Cell division that results in gametes |
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Define sperm cell |
Male sex cell |
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Define egg cell |
Female sex cell |
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Define diploid |
A cell with a full set of chromosomes (23 pairs) |
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Haploid |
A cell with half a set of chromosomes |
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Zygote |
A fertilised egg |
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Fertilisation |
Two haploid cells fuse together |
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Define Gametes |
The name given to sex cells |
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Define discontinuous characteristics |
Characteristics that fall into distinct categories or groups e.g eye colour, blood group |
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Define continuous characteristics |
Characteristics that can take any value between a minimum and a maximum e.g height, hair length |
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What’s Asexual reproduction |
Involves just one parent - each organism is genetically identical to its parent - no mixing of DNA |
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What’s sexual reproduction |
Requires 2 parents - genetic information is taken from both parents - gametes fuse together in fertilisation |
