Lecture 2: Hormones

Question 1

Hormone receptor

Answer 1

• Is a cell protein that binds to a specific hormone
• They receive messages and tell the cell what to do
• Different receptors do different things

Question 2

Phylogeny of steroid receptor gene family

Answer 2

• frist steroid receptor was an estrogen receptor

- others created by series of duplications from a common ancestral receptor gene

Question 3

Organizational Hormones

Answer 3

hormones can have org effects that permanently change tissues, usually during development

Question 4

Activational Hormones

Answer 4

hormones can have act effect in which tissues organized earlier are activated in the short term

Question 5

Organizational/Activational Hypothesis

Answer 5

• Hypothesis states that steroid hormones permanently alter nervous system during development, reflecting in adult male or female typical behaviors
• steroid hormones affect sexual dimorphism