Use the following information to answer the following questions.
In 1971, David Baltimore described a scheme for classifying viruses based on how the virus produces mRNA.
The table below shows the results of testing five viruses for nuclease specificity, the ability of the virus to act as an mRNA, and presence (+) or absence (-) of its own viral polymerase.
-Based on the above table, which virus meets the requirements for a bacteriophage?
Definitions:
Cysteine Residues
Amino acids found in proteins that contain a thiol (sulfhydryl) group, known for forming disulfide bonds that contribute to the folding and stability of proteins.
Alpha Helix
A common motif in the secondary structure of proteins, characterized by a right-handed coiled or spiral shape.
Protein Organization
The process by which proteins fold into complex three-dimensional structures essential for their biological function.
Disaccharide
A sugar produced by covalently linking two monosaccharides (e.g., maltose or sucrose).
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