Overview of Genetic Components: DNA Molecule, Nucleotides, Chromosomes, and Cell Division
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Questions and Answers

What is the primary component of chromosomes?

  • Proteins
  • RNA molecule
  • Histones
  • DNA molecule (correct)

    • What is the process by which each chromosome makes a copy of itself?

  • Mitosis
  • Meiosis
  • DNA Replication (correct)
  • Cell Division

    • What is the difference between nucleotides in DNA and RNA?

  • The number of phosphate groups
  • The presence of histones
  • The type of nitrogen base
  • The type of sugar molecule (correct)

    • What is the function of genes in the cell?

    <p>To code for protein products</p> Signup and view all the answers

    What is the total number of chromosomes in a human cell?

    <p>46</p> Signup and view all the answers

    What was Gregor Mendel's contribution to the study of genetics?

    <p>He experimented with pea plants to study how traits are inherited</p> Signup and view all the answers

    What is the term for the specific characteristics of an organism, such as flower color or pea plant height?

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

    What happens to recessive alleles when paired with a dominant allele?

    <p>They are only expressed when paired with another recessive allele</p> Signup and view all the answers

    What is the purpose of the F2 cross?

    <p>To determine the probability of recessive traits being expressed</p> Signup and view all the answers

    What is the concept used in genetics to predict the outcomes of genetic crosses?

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

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