In human female, the fertilized eggs gets implanted in uterus
(a) After two months of fertilization
(b) After one month of fertilization
(c) After 3 weeks of fertilization
(d) After about 7 days of fertilization

Options

A. After two months of fertilization
B. After one month of fertilization
C. After 3 weeks of fertilization
D. After about 7 days of fertilization

Answer

To solve the question regarding when a fertilized egg gets implanted in the uterus of a human female, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Fertilization**:
- Fertilization is the process where the male gamete (sperm) fuses with the female gamete (ova or egg cell) to form a diploid structure known as a zygote.

2. **Development of the Zygote**:
- After fertilization, the zygote undergoes a series of divisions known as cleavage. This process involves multiple rounds of cell division without growth, leading to the formation of a multicellular structure.

3. **Formation of the Blastocyst**:
- After approximately 6 to 7 days of cleavage, the zygote develops into a structure called a blastocyst. This is a crucial stage in the development of the embryo.

4. **Implantation Process**:
- The blastocyst then travels down the fallopian tube and reaches the uterus, where it implants into the uterine lining. This implantation occurs about 7 days after fertilization.

5. **Conclusion**:
- Based on the above steps, we can conclude that the correct answer to the question is (d) After about 7 days of fertilization.

### Final Answer:
(d) After about 7 days of fertilization.

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