Which of the Following Statements Is True

question 15

Multiple Choice

Which of the following statements is true?

• A) The hydrogen bonding of cytosine to guanine is an example of complementary base pairing.
• B) In DNA, adenine always base pairs with guanine, and cytosine always base pairs with thymine.
• C) Each of the four nucleotides in a DNA molecule has the same nitrogen-containing base.
• D) When adenine base pairs with thymine, they are linked by three hydrogen bonds.
• E) None of these statements are true.

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Definitions:

Phylogenetic Trees

Diagrams that represent the evolutionary relationships among various biological species or other entities, based upon similarities and differences in their physical or genetic characteristics.

Systematists

Systematists are scientists who study the classification and evolutionary relationships among organisms, organizing them into systems of taxonomy.

Evolutionary Relationships

Descriptions of how different species are connected to each other through common ancestors, detailing the path of divergence and speciation.

Convergent Evolution

A process where organisms not closely related independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.