DNA

• The change in Phenotype is a Mutation.
• Polydactly is a genetic disorder caused by a Dominant allele. Its where an extra limb is formed.
• Cystic Fibrosis is the build up of thick mucus in the lungs and pancreas, clogging it and making it harder to breath.
• What is a Gene?

  A section of DNA that codes for proteins.
• DNA is a chemical of genetic material
• DNA is genetic material.
• Chromosomes contain DNA, and code for proteins.
• A gene is a section of DNA on a chromosome.
• DNA is a double helix.
• Proteins are made by joining up amino acids.
• Each gene codes for a specific sequence of amino acids to make a specific protein.
• Genome the genetic material of a organism.
• Studying the Genome

  
  

  • Help link genes to a specific disease
  • Helps treat and understand Inherited diseases
  • Trace ancestry by human migration.
• Humans have 20 different amino acids
• DNA is a polymer made of molecules called = nucleotides
• Nucleotides contain = A Sugar, Base and Phosphate group
• There are 4 bases ; which are complementary to each other. A,T,C,G