The Anticodon of TRNAala Can Bind to Three Different Codons

question 55

Multiple Choice

The anticodon of tRNAala can bind to three different codons for alanine (GCU,GCC and GCA) because

• A)there are different bases at the 5' end position of the anticodon.
• B)there are different bases at the 3' end position of the anticodon.
• C)the base at the 5' position of the anticodon is I and is the wobble position.
• D)the base at the 3' position of the anticodon is I and is the wobble position.

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Definitions:

Heritable Variation

Differences in genetic information that are passed from parents to offspring through reproduction, contributing to genetic diversity within a population.

Allopatric Speciation

Model that proposes that new species arise due to an interruption of gene flow between populations that are separated geographically.

Geographic Separation

The physical separation of populations by geographic barriers that lead to the formation of distinct species over time.

Reproductive Isolation

A set of mechanisms that prevent different species from mating or ensure that any offspring produced are sterile.