Features that distinguish an individual or orgamism
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Evolution
The gradual change in characteristics within a species
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Speciation
Evolution of a new species due to geographical isolation/change in habitat. They can no longer interbreed with the original species.
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Heterozygous
Two different alleles of the same gene eg. Hh
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Homozygous recessive/dominant
Having either two recessive or two dominant alleles eg. hh or HH
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Sickle cell disease
A genetic blood disorder caused by the presence of abnormal forms of haemoglobin. Red blood cells become a cresent shape.
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Cystic fibrosis
A recessive genetic disorder affecting the exocrine glands. It causes thick, sticky mucus to build up in the lungs, digestive system and other body parts.
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Other cards in this set
Card 2
Front
The gradual change in characteristics within a species
Back
Evolution
Card 3
Front
Evolution of a new species due to geographical isolation/change in habitat. They can no longer interbreed with the original species.
Back
Card 4
Front
Two different alleles of the same gene eg. Hh
Back
Card 5
Front
Having either two recessive or two dominant alleles eg. hh or HH
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