The data below are from an experiment that tested the effect of leptin on mice with a normal obese gene and mice with a defective obese gene. Assume that the experiment began with a group of mutant mice that were all the same mass, and a group of normal mice of the same mass.
-A mouse escapes its cage, and researchers cannot tell if it is a mutant mouse or a normal mouse. What procedure and result would confirm that this mouse is a mutant mouse?
A)The mouse is fed a high calorie diet. The mouse does not produce leptin and is overweight.
B)The mouse is fed a high calorie diet. The mouse can produce leptin and is a healthy weight.
C)The mouse is fed a low calorie diet. The mouse does not produce leptin and is overweight.
D)The mouse is fed a low calorie diet. The mouse can produce leptin and it is a healthy weight.

Question

The data below are from an experiment that tested the effect of leptin on mice with a normal obese gene and mice with a defective obese gene. Assume that the experiment began with a group of mutant mice that were all the same mass, and a group of normal mice of the same mass. 
-A mouse escapes its cage, and researchers cannot tell if it is a mutant mouse or a normal mouse. What procedure and result would confirm that this mouse is a mutant mouse?
A)The mouse is fed a high calorie diet. The mouse does not produce leptin and is overweight. 
B)The mouse is fed a high calorie diet. The mouse can produce leptin and is a healthy weight. 
C)The mouse is fed a low calorie diet. The mouse does not produce leptin and is overweight. 
D)The mouse is fed a low calorie diet. The mouse can produce leptin and it is a healthy weight.

Quizplus · Accepted Answer

If the mouse does not produce leptin and is overweight despite being fed a high calorie diet, it indicates a mutation affecting leptin production, confirming it as a mutant mouse.

The Data Below Are from an Experiment That Tested the Effect