Inheritance & EvolutionVery High Exam FrequencyAQAEdexcelOCRWJEC

DNA Genome

DNA structure, function, and the human genome

What you'll cover

  • DNA structure and base pairing
  • Chromosomes and genes
  • Human genome project
  • DNA mutations and their effects

Sample Flashcards

What is a gene?
A section of DNA that codes for the production of a specific protein. The sequence of bases in the gene determines which protein is made.
What is an allele?
A different version of the same gene. For example, the gene for eye colour has alleles for brown eyes and blue eyes. Alleles arise due to mutations in the original gene.

Sample Questions

Which of the following base pairing rules is correct for DNA?

  • A. A-T and C-G
  • B. A-C and T-G
  • C. G-A and C-T
  • D. T-C and G-A
2 marksfoundation

What are the four nitrogenous bases found in DNA?

4 markshigher

25

exam-style questions

25

revision flashcards

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