In an Experiment, Knockout Mice Without the Ability to Taste

question 39

Multiple Choice

In an experiment, knockout mice without the ability to taste sweetness were conditioned over a period of six days. On the first day, they were allowed to sip from a sugar-water spout placed on one side of the chamber. On the second day, they were allowed to sip from a plain-water spout placed on the other side of the chamber. After the six days of conditioning, both spouts were made available again. The spouts delivered only plain water. The mice exhibited a strong preference for the spout that had previously delivered the sugar water. This implies that the mice had:

• A) learned to recognize and prefer the nutritious sugar water.
• B) developed the PAV version of a gene used to code for a specific taste receptor.
• C) developed the AVI version of a gene used to code for a specific taste receptor.
• D) regained their ability to detect sweet flavors.

Understand the basic premises of Marxist conflict theory in relation to racial and ethnic conflicts.

Gain knowledge about the historical and contemporary policies affecting immigration in Canada.

Learn about patterns of adaptation among immigrants and their effects on identity.

Identify the educational trends among new immigrants compared to past immigrants.

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Definitions:

Group Cohesiveness

The extent to which members of a group feel bonded or united toward achieving a common goal.

Social Activities

Engagements that involve interaction with others for entertainment, recreation, or other social purposes.

Cohesiveness

Refers to the degree of camaraderie within a group.

Productivity

The measure of efficiency in converting inputs into useful outputs, often evaluated in terms of the amount of output produced per unit of input.