Which Statement About Leptin Is True

question 79

Multiple Choice

Which statement about leptin is true?

• A)It is produced by fat cells.
• B)It signals the brain to switch hunger on.
• C)When injected into rats, it leads to obesity.
• D)It increases the reinforcing value of food.

Understand the concept of disruptive selection and how it differs from other forms of selection.

Describe the effects of the founder effect, including the potential for increased frequency of harmful alleles.

Explain how migration and gene flow contribute to the genetic diversity of populations.

Understand the M'Naghten standard's role and application in legal systems.

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Definitions:

Cystic Fibrosis

A genetic disorder affecting mostly the respiratory and digestive systems, characterized by thick, sticky mucus that can lead to respiratory infections.

Mucous Secretions

Biological fluids produced by mucous membranes that serve to protect, lubricate, and filter in various parts of the body.

Genomic Imprinting

A process in genetics where the expression of certain genes depends specifically on the parent they come from.

Prader-Willi Syndrome

A genetic disorder characterized by obesity, intellectual disability, and short stature, caused by the loss of function of specific genes on chromosome 15.