Assertion : Oxytocin is a birth hormone and milk-forming hormone.
Reason : Oxytocin is secreted from posterior lobe of pituitary gland and controls the contraction of uterine muscles at the time of implantation.

Options

A. If both Assertion and Reason are true and Reason is correct explanation of Assertion.
B. If both Assertion and Reason are true but Reason is not correct explanation of Assertion.
C. If Assertion is true but Reason is false.
D. If both Assertion and Reason are false.

Answer

To analyze the given assertion and reason, let's break it down step by step.

### Step 1: Understanding the Assertion
The assertion states that "Oxytocin is a birth hormone and milk-forming hormone."
- **Analysis**: Oxytocin is indeed known as a birth hormone because it plays a crucial role in childbirth by stimulating uterine contractions. However, it is not responsible for milk formation. The hormone responsible for milk production is prolactin.

### Step 2: Understanding the Reason
The reason states that "Oxytocin is secreted from the posterior lobe of the pituitary gland and controls the contraction of uterine muscles at the time of implantation."
- **Analysis**: This statement is partially correct. Oxytocin is secreted from the posterior lobe of the pituitary gland and does control uterine contractions, but it is primarily involved during labor rather than at the time of implantation. The contractions during implantation are not primarily influenced by oxytocin.

### Step 3: Conclusion
- **Assertion**: False (Oxytocin is not a milk-forming hormone; prolactin is).
- **Reason**: Partially true, but misleading in context (oxytocin does control contractions, but not specifically at implantation).

### Final Evaluation
Both the assertion and the reason contain inaccuracies. Therefore, the correct conclusion is that both the assertion and the reason are false.

### Answer
Both assertion and reason are false.

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