Sex-Linked Pedigree Analysis & Nucleic Acids Lesson 4 Quiz
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Questions and Answers

Which nitrogenous base in DNA is paired with guanine?

  • Cytosine (correct)
  • Adenine
  • Thymine
  • Uracil

    • What is the relationship between the two strands of the DNA helix?

  • The strands are parallel to each other.
  • The strands are not connected and run independently.
  • The strands are antiparallel, with the 5' end of one strand paired with the 3' end of the other. (correct)
  • The strands run in the same direction.

    • What is the name of the law that states that the amount of guanine is equal to the amount of cytosine, and the amount of adenine is equal to the amount of thymine, in DNA?

  • Chargaff's Law (correct)
  • Heisenberg's Principle
  • Mendel's Law
  • Watson-Crick Law

    • What is the role of mRNA in protein synthesis?

    <p>mRNA carries the genetic code from the nucleus to the ribosome.</p> Signup and view all the answers

    Which type of RNA is responsible for bringing individual amino acids to the ribosome during protein synthesis?

    <p>tRNA</p> Signup and view all the answers

    What is the purpose of the anticodons on tRNA molecules?

    <p>To recognize and bind to the complementary codons on the mRNA molecule.</p> Signup and view all the answers

    What is the study of genes, genetic variation, and heredity in organisms called?

    <p>Genetics</p> Signup and view all the answers

    Who is credited with principles of inheritance and coining the terms dominant and recessive?

    <p>Gregor Mendel</p> Signup and view all the answers

    Which term describes the masking or overriding effect of a different variant of the same gene?

    <p>Dominant</p> Signup and view all the answers

    What is the term for a weak, unexpressed trait in genetics?

    <p>Recessive</p> Signup and view all the answers

    Which scientist developed the Punnett Square used to predict genotypes?

    <p>Reginald C. Punnett</p> Signup and view all the answers

    What does RNA stand for in genetics?

    <p>Ribonucleic Acid</p> Signup and view all the answers

    What are the four nitrogenous bases found in DNA?

    <p>Adenine, Guanine, Cytosine, Thymine</p> Signup and view all the answers

    What is the structure of DNA often compared to?

    <p>A double helix</p> Signup and view all the answers

    What does Chargaff's Law state about the proportions of nitrogenous bases in DNA?

    <p>The amount of Adenine equals the amount of Thymine, and the amount of Guanine equals the amount of Cytosine.</p> Signup and view all the answers

    Which type of RNA is responsible for carrying genetic information from the nucleus to the ribosomes for protein synthesis?

    <p>Messenger RNA (mRNA)</p> Signup and view all the answers

    What are the four nitrogenous bases found in RNA?

    <p>Adenine, Guanine, Cytosine, Uracil</p> Signup and view all the answers

    What type of bond links the nucleotides together in the sugar-phosphate backbone of DNA and RNA?

    <p>Phosphodiester bond</p> Signup and view all the answers

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