When Runx2 (Or Cbfa1)is Genetically Inactivated in Mice,which Cell Lineage

question 3

Multiple Choice

When Runx2 (or Cbfa1) is genetically inactivated in mice,which cell lineage does not form?

• A) Striated muscles
• B) Chondrocytes
• C) Osteoblasts
• D) Osteoclasts

---

Definitions:

Unconditioned Response

An automatic and natural reaction to a stimulus that does not require learning.

Increased Heartbeat

A condition where the heart rate speeds up, typically in response to exercise, stress, or excitement.

Positive Reinforcement

A process in behavior modification that involves giving a reward to reinforce a desired behaviour, encouraging its repetition.

Extrinsic Reinforcement

Motivation or reward that comes from outside an individual, such as money, grades, or praise, which can influence behavior.