The Figure Below Shows a Partial Chromosome Map of an E

question 26

Multiple Choice

The figure below shows a partial chromosome map of an E. coli Hfr strain. Each mark equals 10 minutes. If transfer of genes begins at "*" and goes in the direction of the arrow, which of the predicted results from this map is MOST likely to be observed?

• A) gal will be the first and ton will be the last gene to be transferred.
• B) lac and azi will rarely be transferred together.
• C) Ten minutes after transfer of ton, azi will be transferred.
• D) It would take 30 minutes to transfer all of the genes that are shown.
• E) All the chromosomal genes will be transferred by the end.

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Definitions:

Normal Saline Instillation

The process of introducing a salt water solution, usually isotonic to body fluids, into the body for medical purposes, such as cleansing or hydration.

Oral Endotracheal Tube

A tube inserted through the mouth into the trachea to maintain an open airway or to deliver certain medications.

Gum Line

The boundary area where the gums meet the teeth, important in dental health for identifying issues like gum disease or recession.

Repositioning Tube

A procedure or device designed to adjust the placement of medical tubing within the body to ensure proper function and comfort.