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Dna Structure (biology Only) (GCSE Biology)
The following is a GCSE Biology test covering 'Dna Structure (biology Only)' from the broader topic Inheritance, Variation And Evolution. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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In the DNA double helix, which bases pair together by complementary base pairing?
Which of the following is an effect a mutation in a gene might have?
Why are some mutations described as beneficial for evolution?
Which term refers to the complete set of DNA in an organism?
What is the role of helicase in DNA replication?
What term describes a stretch of DNA that codes for a single protein?
DNA replication is described as semi-conservative. What does this mean?
How many hydrogen bonds normally form between a cytosine and a guanine base pair?
How does a frameshift mutation affect a protein-coding gene?
DNA strands are described as antiparallel. What does this mean?
In humans, DNA is packaged into structures called chromosomes. Where in the cell are chromosomes normally found?
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