Genes and DNA: The Chemistry of Heredity

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Questions and Answers

What is the role of the 99 percent of the genome mentioned in the text?

  • It serves as the primary unit of heredity in organisms
  • It specifies the structure and function of living things
  • It regulates the production of proteins (correct)
  • It encodes the genetic instructions used in the development and functioning of organisms

What is DNA made of?

  • Nucleotides (correct)
  • Proteins
  • Carbohydrates
  • Lipids

Who were the scientists credited with first identifying and isolating DNA?

  • Charles Darwin
  • Friedrich Miescher (correct)
  • Gregor Mendel
  • James Watson and Francis Crick

Which phrase can be used to remember how nitrogen base pairs are bonded in DNA?

<p>&quot;AT - GC&quot; (A)</p> Signup and view all the answers

What does DNA do besides specifying the structure and function of living things?

<p>Contributes to the diversity of life through slight changes (B)</p> Signup and view all the answers

What did James Watson and Francis Crick propose in 1953 that shook the scientific world?

<p>A model for the structure of DNA (C)</p> Signup and view all the answers

What is the function of genes as mentioned in the text?

<p>Carrying information from one generation to the next (A)</p> Signup and view all the answers

What is the complete set of an individual's DNA called?

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

What does DNA provide directions for?

<p>Making proteins vital for growth and development (C)</p> Signup and view all the answers

Where are genes located in an organism?

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

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