Question

question 14 (6.67 points) listen twin studies suggest that alzheimers disease is influenced by 1) testosterone. 2) gender schemas. 3) heredity. 4) gender typing.

Explanation:

Twin studies are often used to determine the genetic influence on traits and diseases. Since twins share genetic material, similarities in the development of Alzheimer's disease between them point to heredity as a factor. Testosterone is a hormone not directly linked to Alzheimer's through twin - study evidence. Gender schemas and gender typing are concepts related to gender - role development and not to Alzheimer's disease development as indicated by twin studies.

Answer:

1. heredity.