Chapter 12: DNA And Rna

22 Questions  I  By Cowart01
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  • 1. 
    Process in which one strain of bacteria changes into another one

  • 2. 
    Process in which DNA makes a copy of itself

  • 3. 
    Protein that DNA wraps around in eukaryotic chromosomes

  • 4. 
    Virus that infects bacteria

  • 5. 
    Region of DNA that indicates to an enzyme where to bind to make RNA

  • 6. 
    A change in the genetic material

  • 7. 
    Sections of RNA molocules that are not involved in coding for proteins

  • 8. 
    A group of genes that operate together

  • 9. 
    Three nucleotides that specify a single amino acid to be added to a polypeptide

  • 10. 
    Process in which cells become specialized in structure and function

  • 11. 
    The principal enzyme involved in DNA replication

  • 12. 
    Condition in which an organism has extra sets of chromosomes

  • 13. 
    A(n) ______________, is made up of three parts: a deoxyribose sugar, a phosphate group, and a nitrogeneous base.

  • 14. 
    The principle of ____________ states that hydrogenbonds can form only between certain bases in DNA.

  • 15. 
    Eukaryotic chromoromes contain both DNA and protein tightly packed together to form a substance called ____________.

  • 16. 
    During the process of _____________, RNA molocules are produced by copying part of the nucleotide sequence of DNA into a complementary sequence in RNA.

  • 17. 
    The enzyme that uses one strand of DNA as a template to assemble nucleotides into a strand of RNA is called ________________.

  • 18. 
    After introns have been cut out of RNA molocules, the remaining peices called _________ are spliced together.

  • 19. 
    The decoding of an mRNA message into a protein is known as __________.

  • 20. 
    Three bases on the tRNA molocule are that complementary to one of the mRNA codons are called a(n) _____________.

  • 21. 
    When the lac repressor protein binds to the ___________________, the lac operon is turned off.

  • 22. 
    A series of genes, called the __________________, controls the development of organs and tissues in various parts of an embryo.

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