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5 Written questions

5 Matching questions

  1. Which drug is hardest to quit after one use?
  2. What is the difference between an intron and an exon?
  3. How can drugs enter the body?
  4. What are purines and pyrimidines?
  5. What are homologous chromosomes?
  1. a Chromosomes that are similar in shape, size and kind of chromosomes they carry.
  2. b Introns are non-coding segments of mRNA which are cut out of the mRNA after transcription
    Exons are coding segments of mRNA which are spliced together after the introns have been removed.
  3. c Tobacco
  4. d Implantation, Injection, Inhalation
  5. e Purines are bases of DNA (Adenine and Guanine)
    -composed of 2 rings of carbon and nitrogen per base
    Pyrimidines are bases of DNA (Thymine and Cytosine)
    -composed of one ring of carbon and nitrogen atoms per base

5 Multiple choice questions

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  5. They regulatory proteins and activate or repress transcription of specific genes

5 True/False questions

  1. Why did Mendel use garden peas?Mutation in the cell cycle


  2. How does the number of chromosomes in a human gamete vs. a human somatic cell?Human gamete: 23 chromosomes (one sex chromosome and 22 autosomes)
    Human somatic cells: 46 chromosomes (two sex cells and 44 autosomes)
    Somatic cells are twice as big as gametes.


  3. How many chromosomes does someone with Down Syndrome have?47 chromosomes
    Down's is caused by trisomy 21
    Caused by non disjunction of chromosomes during meiosis


  4. What is punctuated equilibrium?The idea that species do not always evolve gradually but actually pretty quickly as their is a sudden dramatic change in environmental pressures causing an increase in many new species to evolve


  5. What are the base pairing rules in DNA? RNA?In DNA: Adenine with Thymine, Guanine with Cytosine
    In RNA: Adenine with Uracil, Guanine with Cytosine


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