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5 Written questions

5 Matching questions

  1. What is reproduction? What are the two main types? Explain each.
  2. What is the role of DNA polymerase? DNA helicase? RNA polymerase?
  3. What is punctuated equilibrium?
  4. Which drug is hardest to quit after one use?
  5. What are some problems associated with nicotine dependence?
  1. a Some problems include: rewiring of the brain when used, dulls taste buds, constricts blood vessels, increase heart rate and blood pressure, prevents lungs from absorbing oxygen properly, causes lung cancer and increase risk of other forms of cancer, major cause of death from heart and blood vessel disease and stroke, and cause of gum disease and tooth loss.
  2. b Tobacco
  3. c 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
  4. d 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. e The making of more of the same species.
    The two main types are sexual and asexual reproduction.
    Sexual- genetic material is donated from two parents to make a genetically unique offspring.
    Asexual- genetic material is donated from one parent to make a genetically identical offspring.

5 Multiple choice questions

  1. The male gamete can either carry the X sex chromosome or the Y sex chromosome where the female only carries the 2 Xs to contribute to the offspring.
  2. 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
  3. The link between microevolution and macroevolution, and is the formation of new species
  4. He presented evidence that evolution happens and offered a correct reason as to how
  5. Characteristics that are similar in two or more species and that have been inherited from a common ancestor of those species.
    Provides information of common ancestry between species.

5 True/False questions

  1. What are the three main categories of STD?Bacterial STDs, Viral STDs, Parasitic STDs


  2. Briefly explain what happens during transcriptionThey regulatory proteins and activate or repress transcription of specific genes


  3. Are there any difference in the risks of drug usage of legal versus illegal drugs?Spermatogenesis is for males and it goes through meiosis 1 and meiosis 2 to create 4 haploid gametes that change into sperm cells.

    Oogenesis is for females and it goes through 2 stages of meiosis to create 1 ovum and 3 other polar bodies.


  4. In a heterozygous cross, what are the phenotypic and genotypic ratios? What is the likelihood that an offspring will express the dominate trait?Genotypic ratio- 1:2:1
    Phenotypic ratio- 3:1
    75% chance the dominant trait will be expressed


  5. Briefly describe the diploid life cycle?Most of the life cycle is spent as diploid cells except the gametes which are haploid.