Human Genetics Final Exam

12 Questions

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Human Genetics Final Exam

It’s time for your finals! That’s right, and it’s time to see if all that studying has been worth it or if you should’ve spent more time with your nose in a book! Never fear, because today we’ll be giving you a practice run on your final exam for human genetics, a biological study which looks at the genes, heredity, and genetic variation of a person. Think you know enough to pass? Let’s find out!


Questions and Answers
  • 1. 
    Humans have ___pairs of chromosomes
    • A. 

      16

    • B. 

      23

    • C. 

      38

    • D. 

      46

  • 2. 
    A genotype refers to
    • A. 

      Particular allele combinations

    • B. 

      Expression patterns of certain genes

    • C. 

      The environmental components of a trait

    • D. 

      The number of chromosomes

  • 3. 
    • A. 

      Cure cancer

    • B. 

      Identify new drug targets

    • C. 

      Cure all diseases that involve the same set of genes

    • D. 

      Discover how our long-ago ancestors were related

  • 4. 
    The difference between phenotype and genotype is that
    • A. 

      Phenotype refers to the genetic instructions and genotype to their expression

    • B. 

      Genotype refers to the genetic instructions and phenotype to their expression

    • C. 

      The phenotype is RNA and the genotype is DNA

    • D. 

      The phenotype is DNA and the genotype is RNA

  • 5. 
    In which choice are the entries listed from smallest to largest?
    • A. 

      Cell-genome-gene-DNA building block

    • B. 

      DNA building block-gene-chromosome-genome

    • C. 

      DNA building block-RNA building block-protein

    • D. 

      Gene-cell-DNA-genome

  • 6. 
    One way that single-gene diseases differ from other diseases is that
    • A. 

      They most often affect people late in life

    • B. 

      They affect consecutive generations

    • C. 

      They occur at the same frequency in every population

    • D. 

      It is possible to predict occurrence in specific relatives

  • 7. 
    Genetics is teh study of
    • A. 

      Variation of inherited traits

    • B. 

      How organisms reproduce

    • C. 

      How life orginated

    • D. 

      How the environment causes disease

  • 8. 
    Kanisha and Jamal receive their grades on thier physics midterms. Kanisha got an A, but Jamal got a D. "You must have the physics gene," Jamal said. "I don't. I might as well not bother studying." Jamal's attitude illustrates the idea of
    • A. 

      Genetic discrimination

    • B. 

      Genetic determinism

    • C. 

      Genetic handicap

    • D. 

      Genetic engineering

  • 9. 
    Neka is part Native American. He has several relatives who have alcoholism. Neeka takes a direct-to-consumer genetic test panel and discovers that he has inherited gene variants that are associated with increased risk of alcoholism. He reports these facts during an interview for purchasing a life insurance policy, because he thinks that the Genetic Information Nondiscrimination Act will protect him form being denied life insurance based on results of a genetic test. Alas, Neka is denied coverage, because
    • A. 

      the law does not protect Native Americans.

    • B. 

      The law does not protect people of mixed lineage.

    • C. 

      the law only applies to health insurance and employers, not life insurance.

    • D. 

      . the law does not apply to direct-to-consumer tests.

  • 10. 
      Which sequence of events illustrates the steps of signal transduction?    
    • A. 

      First messenger to receptor molecules to second messenger to cellular response

    • B. 

      Receptor molecules to first messenger to second messenger to cellular response

    • C. 

      First messenger to second messenger to receptor molecules to cellular response

    • D. 

      First messenger to second messenger to cellular responses to receptor

  • 11. 
    During apoptosis, caspases
    • A. 

      Stimulate synthesis of carcinogens.

    • B. 

      activate enzymes that cut DNA into same-sized pieces.

    • C. 

      Cause mitochondria to replicate their DNA.

    • D. 

      Alter the cell surface so that viruses can more easily enter.

  • 12. 
    The organelles that contain DNA are the
    • A. 

      Golgi apparatus and lysosome.

    • B. 

      Mitochondrion and plasma membrane.

    • C. 

      Nucleus and mitochondrion.

    • D. 

      Nuclear lamina and endoplasmic reticulum.