The Major Adaptions That Made It Possible for Mammals to Evolve

question 130

Multiple Choice

The major adaptions that made it possible for mammals to evolve into their modern forms included all of the following except ________.

• A)they became significantly larger
• B)they developed a more efficient respiratory system
• C)their brains increased in capacity
• D)they developed specialized teeth to adapt to a varied diet
• E)they developed specialized limbs to adapt to a varied life style

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Definitions:

mRNA

Messenger RNA (mRNA) is a type of RNA that conveys genetic information from DNA to the ribosome, where it specifies the amino acid sequence of the protein products of gene expression.

tRNA

Transfer RNA; a type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein during protein synthesis.

Regulator Gene

A gene involved in controlling the expression of one or more other genes, often by producing a protein that can enhance or suppress gene activity.

Transcription

The process of converting DNA into RNA, specifically messenger RNA (mRNA), which then directs protein synthesis.