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5 Written questions

5 Matching questions

  1. What role did Watson and Crick play in the discovery of the structure of DNA?
  2. What are the types of chromosomal mutation? Describe each?
  3. What is speciation?
  4. Why is gene expression controlled?
  5. Describe the proof that evolution happens
  1. a Controlled so that genes are only expressed when needed
    Saves energy and resources for the cell
    Can be triggered by environment of the cell
    Contact with other cells
    The age of the cell
  2. b Built a 3D model of a DNA molecule
  3. c The link between microevolution and macroevolution, and is the formation of new species
  4. d deletion- occurs when a piece of chromosome is lost

    duplication-occurs when a piece remains attached to its homologous chromosome after meiosis

    inversion- occurs when a piece reattaches to its original chromosome but in the reverse direction

    translocation- occurs when a chromosome piece breaks off and reattaches to a completely different non homologous chromosome
  5. e Fossil record- shows a pattern of gradual change from past to present

    Biogeography- shows that similar environmental conditions contribute to similar development

    Developmental biology- shows similarity in embryonic development in organisms deriving from a common ancestor

    Anatomy- shows similarity of structures n organisms that are related or descended from a common ancestor

    Biochemistry- similarity in amino acid sequences of proteins or DNA give evidence of common ancestry

5 Multiple choice questions

  1. Punnett Square- Model that predicts the likely outcome of a genetic cross
    Pedigree- family history that shows how a specific trait has been inherited over many generations
    Differences- Punnett squares: show possible outcomes of a cross; pedigrees- can determine sex linkage, dominant alleles and heterozygousity of parents
  2. Legal limit over 21: .08
    Legal limit under 21: zero
    Factors that can affect it:
    weight, gender, size, how much is taken, how fast it was taken, how much food you ate before and age
  3. ...
  4. 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. In DNA: Adenine with Thymine, Guanine with Cytosine
    In RNA: Adenine with Uracil, Guanine with Cytosine

5 True/False questions

  1. What is the role of DNA polymerase? DNA helicase? RNA polymerase?DNA polymerase- enzyme responsible for adding complementary bases to a replicating DNA molecule, also edits and corrects the replicating strand of DNA

    DNA helicase- enzyme responsible for unwinding the DNA strand and breaking H bonds between bases of DNA, allows for replication of the DNA molecule

    RNA polymerase- enzyme responsible for opening the DNA molecule at the promoter region of a gene, adds complementary bases according to base pairing rules for RNA until it reaches a stop location on the DNA, produces mRNA


  2. Are there any difference in the risks of drug usage of legal versus illegal drugs?The effects are similar but using illegal drugs or using legal drugs illegally increase the risk of jail time.


  3. Which drug is hardest to quit after one use?1) friends who use
    2) low self esteem
    3) lack of involvement in activities
    4) availability of drugs


  4. What kinds of mutations can be inherited?The process of change by which new species develop from preexisting species over time
    The idea of natural election if why evolution happens
    Individuals with traits advantageous to survival will produce more offspring
    Over time the number of individuals possessing those traits will increase in a population


  5. 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.