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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?
What is meant by the term “codon” in the context of DNA and protein synthesis?
Which molecule is directly complementary to a DNA strand with the base sequence ATCG?
During DNA replication, which enzyme is mainly responsible for adding new nucleotides to a growing strand?
DNA replication is described as semi-conservative. What does this mean?
What is the role of helicase in DNA replication?
Which statement correctly describes the difference between DNA and RNA?
DNA strands are described as antiparallel. What does this mean?
Why are some mutations described as beneficial for evolution?
Which of the following describes the basic building block of DNA?
How does a frameshift mutation affect a protein-coding gene?
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