Most Temperate Phages Integrate into the Host Chromosome, Whereas Some

question 113

Multiple Choice

Most temperate phages integrate into the host chromosome, whereas some replicate as plasmids. Which kind of relationship do you think would be more likely to maintain the phage in the host cell, and why?

• A) Plasmids; they're smaller, so they would be easier to replicate by the host cell.
• B) Integrated; the host cell would be less likely to view this DNA as "foreign" on subsequent rounds of replication, and would retain it more easily.
• C) Plasmids; these structures often carry other genes that may give the host cell a selective advantage over cells that don't have them.
• D) Integration, because plasmids are frequently lost during cell division, which could leave a daughter cell without the virus genome.
• E) Either plasmids or integration because once a virus genome is in a host cell, there is not way for that genome to be removed from the infected cell.

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Definitions:

Tertiary Circular Reaction

A cognitive development stage in babies between 12 and 18 months where they experiment with new behaviors to see results, showing an early form of trial-and-error learning.

Sensorimotor

The first stage of Piaget’s theory of cognitive development, from birth to roughly 2 years, where infants understand the world through their actions and sensory experiences.

Secondary Circular Reaction

A stage in Piaget's theory of cognitive development where infants repeat actions that are pleasurable or produce interesting results, typically occurring from 4 to 8 months of age.

Primary Circular Reaction

An early developmental stage where infants repeat an action that they accidentally discovered, focusing on their own body.