Imagine a Segment of DNA (Within a Gene) Encoding a Certain

question 28

Multiple Choice

Imagine a segment of DNA (within a gene) encoding a certain amount of information in its nucleotide sequence. When this segment is fully transcribed into mRNA and then translated into protein, in general, …

• A) the protein sequence would carry more information compared to the DNA and mRNA sequences, because its alphabet has 20 letters.
• B) the protein sequence would carry less information compared to the DNA and mRNA sequences, because several codons can correspond to one amino acid.
• C) the amount of information in the mRNA sequence is lower, because the mRNA has been transcribed using only one of the DNA strands as the template.
• D) the amount of information in the mRNA sequence is higher, because several mRNA molecules can be transcribed from one DNA molecule.

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Definitions:

Melena

The occurrence of dark, sticky feces, signaling bleeding within the gastrointestinal tract.

Peristalsis

A series of wave-like muscle contractions that move food to different processing stations in the digestive tract.

Ascites

Accumulation of fluid in the peritoneal cavity, causing abdominal swelling, often due to liver disease or cancer.

Eructation

The scientific term for belching or burping, the release of gas from the digestive tract through the mouth.