A Behavioral Biologist Suspects the "N" Locus to Be Involved

question 1

Multiple Choice

A behavioral biologist suspects the "N" locus to be involved in the learning ability of dogs.Learning is measured through a standardized test in which each dog can score from 0 (very poor) to 20 points (excellent) .In an experiment,the mean score was 15.6 for dogs of genotype N/N,12.1 for dogs of genotype N/n and 7.2 for those of genotype n/n.What is the dominance/additivity ratio for this locus?

• A)0
• B)higher than 0,but lower than 0.5
• C)0.5
• D)higher than 0.5,but lower than 1
• E)1

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Definitions:

Grounding Prong

The metal prong on a plug designed to connect the electrical device safely to the ground, reducing the risk of electric shock.

Resistance

A measure of the opposition to the flow of electric current, expressed in ohms (Ω).

Electromotive Force

A difference in potential that drives electric current from one point to another, measured in volts.

Voltage

The electrical potential difference between two points in a circuit, driving the flow of current.