What is DNA?
The chemical that makes up the genetic material in a cell nucleus.
AQA GCSE Combined Science: Trilogy (8464) — Biology — Higher · 4.6.1.3
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What is DNA?
The chemical that makes up the genetic material in a cell nucleus.
Why is DNA described as a polymer?
Each DNA strand is a long chain of repeating units.
How are the strands arranged in DNA?
Two strands twist around each other to form a double helix.
What structures contain DNA in the nucleus?
Chromosomes.
What is an organism’s genome?
Its entire genetic material, not just its genes.
What does studying the human genome as a whole provide a basis for investigating?
Links between genes and different diseases.
What can identifying links between genes and diseases help explain about inherited disorders?
How inherited disorders arise.
What medical interventions can identifying links between genes and diseases help researchers develop?
Treatments for diseases.
What is a gene?
A small section of DNA on a chromosome.
How does a gene's DNA base sequence specify a protein?
It provides the information for a particular amino acid sequence. The amino acids are joined in that order to make a specific protein.