Rats with mutations to the db gene become obese because ___________.
A)they have excessive levels of leptin
B)they suffer from a lack of leptin
C)the receptors in their brains are insensitive to leptin
D)the receptors in their brains are overly sensitive to leptin

Question

Quizplus · Accepted Answer

The db gene mutation in rats leads to obesity because it causes the receptors in their brains to be insensitive to leptin, a hormone involved in regulating energy intake and expenditure, including appetite and hunger.

Rats with Mutations to the Db Gene Become Obese Because