Some Viruses Can Be Crystallized and Their Structures Analyzed

question 35

Multiple Choice

Some viruses can be crystallized and their structures analyzed. One such virus is yellow mottle virus, which infects beans. This virus has a single- stranded RNA genome containing about 6300 nucleotides. Its capsid is 25
-30 nanometres in diameter and contains 180 identical capsomeres. If the yellow mottle virus begins its infection of a cell by using its genome as mRNA, which of the following would you expect to be able to measure?

• A) accumulation of new ribosomes
• B) transcription rate
• C) translation rate
• D) formation of new transcription factors
• E) replication rate

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Definitions:

Evolution

The process through which species undergo genetic changes over time, leading to diversity and complexity in the living world.

Antagonistic Pleiotropy

A phenomenon where a single gene controls for more than one trait, where at least one of these traits is beneficial to the organism's fitness and at least one is detrimental.

Aging

The process of becoming older, characterized by a gradual decline in the physical and functional capabilities of an organism over time.

Genes

Segments of DNA located on chromosomes that contain the instructions for producing proteins or molecules that have specific functions in the organism.