Which of the Following Lessons Was Illustrated by Flood Data

question 20

Multiple Choice

Which of the following lessons was illustrated by flood data from the Colorado River and from the Yellowstone River?

• A)Fifty years is a long enough record to record all but a 100-year flood.
• B)The largest flood possible along a river is likely to have been witnessed by humans.
• C)Few floods are ever larger than 10,000 cubic meters per second.
• D)None of these.

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Definitions:

Genetic Drift

Random fluctuations in the frequencies of alleles within a population due to chance events.

Natural Selection

A process by which species adapt to their environment as individuals with traits conducive to survival and reproduction pass those traits to their offspring.

Nonsynonymous Mutation

A type of nucleotide substitution in a gene sequence that leads to the coding of a different amino acid, potentially altering the function of the protein.

Synonymous Mutation

A genetic mutation that does not alter the amino acid sequence of a protein due to the redundancy of the genetic code, often considered silent mutations.