In human reproduction, fertilisation normally occurs at, and implantation occurs at, respectively:

The correct option is Oviduct and uterine lining.

Explanation

Human reproduction involves internal fertilization and viviparity. The process requires specific anatomical sites within the female reproductive system for the fusion of gametes and the subsequent attachment of the developing embryo.

Detailed Analysis

• Fertilization: This is the fusion of the haploid male gamete (sperm) and the haploid female gamete (ovum). In humans, this process normally takes place in the oviduct, also known as the Fallopian tube (specifically in the ampullary region).
• Implantation: Following fertilization, the zygote undergoes mitotic divisions to form a blastocyst. The blastocyst moves towards the uterus and embeds itself into the uterine lining (endometrium). This attachment is called implantation and leads to pregnancy.

Therefore, the correct anatomical locations are the oviduct for fertilization and the uterine lining for implantation.

Key Takeaway

Fertilization occurs in the Fallopian tube (oviduct), whereas implantation occurs in the endometrium of the uterus.