_____ Is Part of the Exosystem

question 189

Multiple Choice

_____ is part of the exosystem.

• A) Parents' contact with a child's soccer coach
• B) Societal importance placed on athletic prowess of boys
• C) A child's soccer team
• D) A father's job as a truck driver

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Definitions:

Initiation Complex

A complex of proteins and RNA that forms on mRNA to begin the process of translating RNA into a polypeptide chain in the cell.

Nonsense Mutation

A base-pair substitution mutation that results in an amino acid–specifying codon being changed to a termination (stop) codon; when the abnormal mRNA is translated, the resulting protein is usually shortened and nonfunctional. Compare with missense mutation.

Codon

A sequence of three nucleotides that together form a unit of genetic code in a DNA or RNA molecule, representing a specific amino acid.

Termination Codon

A nucleotide triplet within messenger RNA that signals the end of translation, resulting in the release of the newly synthesized protein.