Before the Genetic Code Was Actually Known, Francis Crick Predicted

question 49

Multiple Choice

Before the genetic code was actually known, Francis Crick predicted that it was degenerate. What piece of evidence led him to make this prediction?

• A)All proteins looked the same.
• B)All proteins were made of amino acids.
• C)He noted that the base composition of the DNAs of various bacteria varied greatly while the amino acid composition of their proteins varied much less.
• D)He noted that the base composition of the DNAs of various bacteria varied little while the amino acid composition of their proteins varied greatly overall.
• E)The code was non-overlapping.

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Definitions:

Biodiversity

The variety of life in the world or in a particular habitat or ecosystem, including the diversity of species, genetic variation, and ecosystem variety.

Natural

Existing in or derived from nature; not made or caused by humankind.

Waste Disposal

The process of handling and discarding waste materials generated by human activities or natural processes.

Soil Erosion

The process by which soil is removed from a location, often by wind, water, or human activity, leading to loss of fertility.