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BMS109 10% practice

Quiz by Anna Malkowska

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6 questions
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  • Q1
    DNA replication is said to be:
    Semi-conservative because each new molecule contains one new strand and one old strand
    Semi conservative because each parent molecule gives rise to two identical daughter DNA molecules.
    Semi-conservative because each new strand is made with bits of the parent strand
    Conservative because one completely new molecule is made using the parent molecule as the template.
    60s
  • Q2
    Which of these is true about ribosomes? a. I They have 4 subunits. b. II tRNA carrying Met bind to the P site c. III They are made from rRNA. d. IV The subunits move together along mRNA.
    ii), iii) and iv) are correct.
    ii) and iii) are correct.
    I) and iii) are correct.
    All are correct.
    60s
  • Q3
    Which of these describes Mendel’s second law best?
    states genes controlling different characteristics assort into gametes independently of each other
    is true for all genes
    states two alleles of a gene segregate from each other during gametogenesis
    is the principle of segregation
    60s
  • Q4
    Which statement(s) is/ are true about mitochondria? I. Mitochondria have a double membrane. II. Mitochondria are widely believed to have evolved through the phagocytosis of primordial cells. III. Their membrane contains many porin molecules. IV. Mitochondria contain DNA.
    Only i) is true.
    Only ii) and iii) are true.
    Only i) iii) and iv) are true.
    All of the above are true.
    60s
  • Q5
    Sickle Cell Anaemia:
    is caused by a single point mutation
    the valine codon is changed to glutamine
    the structure of the oxygen molecules is altered
    carriers are resistant to cholera
    60s
  • Q6
    Pathogenesis describes:
    a mechanism which results in clinically evident disease
    a process that increases the risk of developing a disease
    a state in which the health of a human organism is impaired
    the cause of disease
    60s

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