biology inheritance + evolution keywords

• DNA


  Deoxyribonucleic acid, a molecule that is the carrier of genetic information
• DNA Bases


  • A and T, C and G are always paired together
• Double Helix


  Shape of DNA molecule, 2 strands intertwined
• Gene


  Small section of DNA that codes for a particular protein
• Chromosome


  Structure of DNA made up of genes
• Trisomy


  To have 3 of a particular chromosome instead of a pair
• Karyotype


  Complete set of chromosomes for an organism
• Sex Chromosomes


  • XX - female
  • XY - male
• Mutation


  Sudden change in genetic makeup of organism
• Dominant


  Overrules recessive allele, expressed with capital letter
• Recessive


  Expressed with lowercase letter
• Allele


  Variation of a gene
• Natural Selection


  • Organisms better adapted to their environment survive and produce more offspring