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UKA grade 9 science

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  • Different forms of the same gene are called?
    Alleles
  •  15
  • How many recessive alleles do you need for the characteristic to be expressed?
    Two
  •  20
  • Does selective breeding increase or decrease variation within a species?
    Decrease
  •  10
  • Name 2 examples of genetic engineering
    Answers vary eg. Bacteria for insulin, frost resistent Tomatoes, Glowing fish
  •  20
  • What was the name of the first cloned sheep?
    Dolly
  •  10
  • Give 2 examples of plants that reproduce asexually
    Answers vary eg. potatoes, strawberries, Spider plants, succulents
  •  20
  • What are 2 advantages of cloning plants?
    produced quickly, it is cheap, all identical and share desired characteristics
  •  15
  • What is the word equation for fermentation?
    Glucose > ethanol + carbon dioxide
  •  25
  • Name 2 products made by fermentation
    Answers vary eg. bread, wine, beer
  •  10
  • What are the milk solids called in cheese making and what is the liquid called?
    Curd and Whey
  •  20
  • What is the process of heating milk to kill harmful bacteria called?
    Pasteurisation
  •  20
  • Give 2 examples of the use of enzymes
    Making baby food, Removing stains, Extracting juice from fruit
  •  20
  • Who invented the first Vaccine
    Edward Jenner
  •  20
  • What is a pathogen?
    Harmful microorganism
  •  20
  • Do white or red blood cells make antibodies?
    White
  •  10
  • Name 3 side effects of immunisation
    Answers vary eg. temperature, sickness, swollen glands, small lump at injection site, headaches
  •  15