Suppose That Multiple Fragments from a Genome Have Been Cloned

question 20

Multiple Choice

Suppose that multiple fragments from a genome have been cloned into bacteria. How can researchers identify the bacteria that contain the particular sequence they are interested in?

• A) by sequencing all the bacterial DNA
• B) by DNA hybridization, using a labelled probe
• C) by observing that the bacteria will produce white colonies on X-gal
• D) by isolating the DNA of interest before transformation

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Definitions:

Enema Bag

A medical tool used to inject fluid into the lower bowel through the rectum for cleansing or therapeutic purposes.

Room Temperature

The ambient air temperature considered comfortable for humans, typically around 20 to 22 degrees Celsius (68 to 72 degrees Fahrenheit).

Positioning

The act of placing or arranging someone or something in a particular posture or location, especially for medical or therapeutic purposes.

Rectal Sphincter Control

The ability to regulate the opening and closing of the rectal sphincter, critical for bowel movement control.