Keystone Sample Questions Exam! Trivia Quiz

18 Questions | Total Attempts: 526

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Keystone Sample Questions Exam! Trivia Quiz

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Questions and Answers
  • 1. 
    Which statement best describes the relationship between cells, DNA, and proteins?
    • A. 

      Cells contain DNA that controls the production of proteins.

    • B. 

      DNA is composed of proteins that carry coded information for how cells function.

    • C. 

      Proteins are used to produce cells that link amino acids together into DNA.

    • D. 

      Cells are linked together by proteins to make different kinds of DNA molecules.

  • 2. 
    Genes involved in the production of abnormal red blood cells have an abnormal sequence of
    • A. 

      ATP molecules

    • B. 

      Amino acids

    • C. 

      Sugars

    • D. 

      Bases

  • 3. 
    The diagram below shows some of the steps in protein synthesis. The section of DNA being used to make the strand of mRNA is known as a
    • A. 

      Carbohydrate

    • B. 

      Gene

    • C. 

      Ribosome

    • D. 

      Chromosome

  • 4. 
    A change in the base subunit sequence during DNA replication can result in
    • A. 

      Variation within an organism

    • B. 

      Rapid evolution of an organism

    • C. 

      Synthesis of antigens to protect the cell

    • D. 

      Synthesis of antibodies for cellular protection

  • 5. 
    The diagram below represents a yeast cell that is in the process of budding, a form of asexual reproduction. Which statement describes the outcome of this process?
    • A. 

      The bud will develop into a zygote.

    • B. 

      The two cells that result will each contain half the species number of chromosomes.

    • C. 

      The two cells that result will have identical DNA.

    • D. 

      The bud will start to divide by the process of meiotic cell division.

  • 6. 
    Even though each body cell in an individual contains the same DNA, the functions of muscle cells and liver cells are not the same because
    • A. 

      Mutations usually occur in genes when muscle cells divide

    • B. 

      Liver tissue develops before muscle tissue

    • C. 

      Liver cells produce more oxygen than muscle cells

    • D. 

      Liver cells use different genes than muscle cells

  • 7. 
    The flounder is a species of fish that can live in very cold water. The fish produces an "antifreeze" protein that prevents ice crystals from forming in its blood. The DNA for this protein has been identified. An enzyme is used to cut and remove this section of flounder DNA that is then spliced into the DNA of a strawberry plant. As a result, the plant can now produce a protein that makes it more resistant to the damaging effects of frost. This process is known as
    • A. 

      Sorting of genes

    • B. 

      Genetic engineering

    • C. 

      Recombination of chromosomes

    • D. 

      Mutation by deletion of genetic material

  • 8. 
    The diagram below represents an incomplete section of a DNA molecule. The boxes represent unidentified bases. When the boxes are filled in, the total number of bases represented by the letter A (both inside and outside the boxes) will be
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 9. 
    Which nuclear process is represented below?
    • A. 

      Recombination

    • B. 

      Fertilization

    • C. 

      Replication

    • D. 

      Transcription

  • 10. 
    The diagram shows the results of a technique used to analyze DNA. This technique used to analyze DNA directly results in
    • A. 

      Synthesizing large fragments of DNA

    • B. 

      Separating DNA fragments on the basis of size

    • C. 

      Producing genetically engineered DNA molecules

    • D. 

      Removing the larger DNA fragments from the samples

  • 11. 
    The diagram shows the results of a technique used to analyze DNA. This laboratory technique is known as
    • A. 

      Gel electrophoresis

    • B. 

      DNA replication

    • C. 

      Protein synthesis

    • D. 

      Genetic recombination

  • 12. 
    The diagram below represents the synthesis of a portion of a complex molecule in an organism. Which row in the chart could be used to identify the building blocks and product in the diagram?   Row Building Blocks Product (1) starch molecules glucose (2) amino acid molecules part of protein (3) sugar molecules ATP (4) DNA molecules part of starch
    • A. 

      Row 1

    • B. 

      Row 2

    • C. 

      Row 3

    • D. 

      Row 4

  • 13. 
    The diagram below represents a technique used in some molecular biology laboratories. This technique is a type of
    • A. 

      Chromatography

    • B. 

      Gel electrophoresis

    • C. 

      Direct harvesting

    • D. 

      Genetic engineering

  • 14. 
    A student added an enzyme to a test tube containing a sample of DNA. After a period of time, analysis of the DNA sample indicated it was now broken into three segments. The purpose of the enzyme was most likely to
    • A. 

      Cut the DNA at a specific location

    • B. 

      Move the DNA to a different organism

    • C. 

      Copy the DNA for protein synthesis

    • D. 

      Alter the DNA sequence in the segment

  • 15. 
    Drugs to reduce the risk of rejection are given to organ transplant patients because the donated organ contains
    • A. 

      Foreign antigens

    • B. 

      Foreign antibodies

    • C. 

      DNA molecules

    • D. 

      Pathogenic microbes

  • 16. 
    The diagram below represents the cloning of a carrot plant. Compared to each cell of the original carrot plant, each cell of the new plant will have
    • A. 

      The same number of chromosomes and the same types of genes

    • B. 

      The same number of chromosomes, but different types of genes

    • C. 

      Half the number of chromosomes and the same types of genes

    • D. 

      Half the number of chromosomes, but different types of genes

  • 17. 
    The diagram below represents four different species of bacteria. Which statement is correct concerning the chances of survival for these species if there is a change in the environment?
    • A. 

      Species A has the best chance of survival because it has the most genetic diversity.

    • B. 

      Species C has the best chance of survival because it has no gene mutations.

    • C. 

      Neither species B nor species D will survive because they compete for the same resources.

    • D. 

      None of the species will survive because bacteria reproduce asexually.

  • 18. 
    Several structures are labeled in the diagram of a puppy shown below. \ Every cell in each of these structures contains
    • A. 

      Equal amounts of ATP

    • B. 

      Identical genetic information

    • C. 

      Proteins that are all identical

    • D. 

      Nelles for the synthesis of glucose

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