Some viruses can be crystallized and their structures analyzed. One such virus is Desmodium, or yellow mottle virus, which infects beans. This is a member of the tymovirus group and has a single-stranded RNA genome of ~6,300 nucleotides. Its virion is 25—30 nm in diameter, and is made up of 180 copies of a single capsid protein that self-associate to form each capsomere, which has icosahedral symmetry with 20 facets.
If this virus has a positive RNA strand as its genome, it begins the infection by using this strand as mRNA. Therefore, which of the following do you expect to be able to measure?
A) replication rate
B) transcription rate
C) translation rate
D) accumulation of new ribosomes
E) formation of new transcription factors
A plant infected with tobacco mosaic virus
Large-scale impacts of the (a) positive, and (b) negative phases of the North Atlantic Oscillation.
Open, or compound The fracture projects through the skin and there is a possibility of infection or
Immunization with a vaccine. A healthcare professional is injecting a vaccine into the patient’s arm
Positive Babinski’s sign.
Positive and negative selection during T-cell development.