OCR Twenty First Science A - B1

You and Your Genes

HideShow resource information
  • Created by: mollie765
  • Created on: 27-03-14 18:58
View mindmap
  • Genes
    • some diseases are caused by one faulty gene
      • Cystic fibrosis
      • Huntingtons
    • Y is the sex-determing gene
    • different versions of the same gene are called alleles.
    • Different combinations of genes produce variation in offspring
    • Hetrozygous-two alleles that are different
    • Genotype-means your genetic makeup
      • Genetic make-up is what genes you actually have
    • Homozygous- two alleles that are different
    • Cloning
      • Plants and simple animals reproduce asexually
        • Plants clone themselves naturally through bulbs and runners
      • Dolly was the first artificiality cloned mammals
    • Genetic Testing
      • illegal in the Uk
      • Amniocentesis- colleting cells from a developing fetus
      • chronic villus sampling- testing a sample of cells from the placenta
        • Both carry a 1%chance of miscarriage
          • Amniocentesis- colleting cells from a developing fetus


No comments have yet been made

Similar Biology resources:

See all Biology resources »See all DNA and inheritance resources »