Human Genetics Final Exam

12 Questions  I  By Cralston
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Genetics Quizzes & Trivia

  
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  • 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. 
    Constructing a "diseasome" is a way to connect diseases that share cerain gene expression patterns. A goal of this approach is to
    • 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.


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