Daily Practice · GCSE Science

Daily Practice - GCSE Science

29th May 1999

5 questions · GCSE · 584 questions in this band

1
Inheritance, Variation and Evolution
Define the term allele.
2
DNA, Genetics and Inheritance
State whether cystic fibrosis is caused by a dominant or a recessive allele.
3
Variation, Evolution and Selection
Give one example of variation that is caused purely by the environment rather than by genes.
4
Ecology
Define community, in ecological terms.
5
Ecosystems, Adaptation and Feeding Relationships
Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.

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