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 (B)</p> Signup and view all the answers

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

<p>46 (B)</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 (D)</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 (B)</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 (B)</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 (B)</p> Signup and view all the answers

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

<p>Probability (C)</p> Signup and view all the answers

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