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Bio 1801 Review

Quiz by Dominik Bettini

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26 questions
Show answers
  • Q1

    What theory about DNA replication is correct?

    Dispersive Replication

    Semiconservative Replication

    Conservative Replication

    Semidispersive Replication

    30s
  • Q2

    What is an Okazaki Fragment?

    An enzyme that unwindsthe double helical DNA by ‘melting’ the hydrogen bonds between bases.

    An enzyme responsible for maintenance of the length of telomeres

    An extra piece of DNA that was discarded before the beginning of DNA replication

    Short fragments of DNA created during discontinuous DNA replication

    30s
  • Q3

    What is polymerization?

    The process of monomer molecules reacting together to form polymers

    The process of using RNA to form polymers

    The process of hydrolytic reactions forming polymers

    The process of polymers breaking down into simpler molecules

    30s
  • Q4

    What were the scientific contributions of Rosalind Franklin and Maurice Wilkins?

    Establishment of the ratio of nucleotide bases

    Usage of X-ray crystallography to measure distances between atoms in DNA

    Discovered adenine

    Tested the hypotheses of DNA replication

    30s
  • Q5

    What is the function of the enzyme Helicase?

    To bind and stabilize the single-stranded regions of DNA created by other enzymes

    Replaces the RNA primer with DNA

    To unwind the double helical DNA by breaking the hydrogen bonds between bases

    To cut and rejoin DNA ahead of helicase to relieve tension from unwinding

    30s
  • Q6

    What molecules make up a Phosphodiester bond?

    2 nucleotide groups and 1 phosphate group

    2 sugar hydroxyl groups and 1 phosphate group

    1 sugar hydroxyl group and 2 phosphate groups

    2 semiphosphodietic bonds

    30s
  • Q7

    Which number refers to SSBPs in this model?

    Question Image

    3

    1

    4

    2

    5

    30s
  • Q8

    Which bond type is the strongest?

    Adenine and Thymine

    Guanine and Cytosine

    Guanine and Adenine

    Cytosine and Thymine

    30s
  • Q9

    Which enzyme acts as a "cap" for protecting chromosomes during DNA replication?

    Primase

    Telomerase

    Ligase

    Polymerase

    30s
  • Q10

    Which of the following best explains the process of homologous recombination?

    Genetic information is exchanged between vastly different DNA and RNA strands during mitosis

    Process of binding and stabilize the single-stranded regions of DNA created by helicase

    The process of replicating DNA in prokaryotic organisms

    Genetic information is exchanged between two similar or identical DNA strands to repair harmful breaks

    30s
  • Q11

    What best explains the "one gene - one enzyme" hypothesis?

    An enzyme can spontaneously generate exactly 1 gene

    An enzyme can code for exactly 1 gene

    Each gene controls the synthesis or activity of a single enzyme

    Beadle & Tatum's theory that one gene can direct the formation of any enzyme

    30s
  • Q12

    What best decribes the type of mutation where fragments of chromosomes reattach to different chromosomes?

    Deletion

    Duplication

    Translocation

    Inversion

    30s
  • Q13

    Which of these eukaryotic RNA polymerase names and functions is INCORRECT?

    Pol III - used to produce each of the tRNAs

    Pol II - used to produce the protein-encoding RNAs and the micro RNAs

    Pol III - used to produce a small ribosomal subunit 

    Pol II - used to produce a large ribosomal subunit

    Pol I - used to produce a large ribosomal subunit

    30s
  • Q14

    True or false: translation describes the synthesis of proteins from an RNA template?

    False

    True

    30s
  • Q15

    What best describes what an intron is?

    A segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence

    A nucleotide sequence within a gene that is expressed in the final RNA product

    A nucleotide sequence within a gene that is not expressed in the final RNA product

    Nucleic acid that aids in removing an exon from an RNA sequence in the final product

    30s

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