Assertion: Conception marks the beginning of pregnancy.
Reason: During conception, blastocyst gets embedded into thickened inner wall of the uterus.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer

**Step-by-Step Text Solution:**

1. **Understanding Conception:**
- Conception refers to the fertilization of an egg by a sperm, resulting in the formation of a zygote. This is the initial step in the process of reproduction.

2. **Defining Pregnancy:**
- Pregnancy is defined as the period during which a fertilized egg develops into a fetus inside the uterus. It begins when the embryo successfully implants itself into the uterine lining.

3. **Assertion Analysis:**
- The assertion states that "Conception marks the beginning of pregnancy." This is misleading because while conception is a crucial step in reproduction, pregnancy is officially recognized to begin with the implantation of the embryo in the uterus.

4. **Reason Analysis:**
- The reason provided states that "During conception, blastocyst gets embedded into the thickened inner wall of the uterus." This is incorrect because the embedding of the blastocyst into the uterine wall is known as implantation, not conception.

5. **Conclusion:**
- Since both the assertion and the reason are incorrect, the correct option is that both statements are false.

**Final Answer:**
Both the assertion and the reason are false.

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