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Alleles, genotype, and phenotype

Quiz by Oak National Academy: GCSE Biology AQA Foundation

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6 questions
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  • Q1
    Phenotype refers to an organism’s observable characteristics. Which factors can affect an organism’s phenotype?
    Its environment only.
    Its genetic code and its environment.
    Its genetic code only.
    30s
  • Q2
    Starting with the smallest, put these in size order.
    Users link answers
    Linking
    30s
  • Q3
    What is the genome in a unicellular organism?
    All the enzymes in the cell.
    All the proteins in the cell.
    All the genes in the cell.
    All the non-coding DNA in the cell.
    All the DNA in the cell.
    30s
  • Q4
    Which is the best description of a DNA molecule?
    A monomer made of two nucleotide chains forming a double helix.
    A polymer made of three nucleotide chains forming a triple helix.
    A monomer made of one nucleotide chain forming a helix.
    A polymer made of two nucleotide chains forming a double helix.
    A polymer made of one nucleotide chain forming a helix.
    30s
  • Q5
    True or false? All genes code for enzymes.
    false
    true
    True or False
    30s
  • Q6
    Put these in order to describe the production of a red pigment in a petal.
    Users link answers
    Linking
    30s

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