Question

What is the correct sequence of events during reproduction in human beings?

• A. Gamete formation $\to$ fertilisation $\to$ zygote $\to$ embryo
• B. Embryo $\to$ zygote $\to$ fertilisation $\to$ gamete formation
• C. Fertilisation $\to$ gamete formation $\to$ embryo $\to$ zygote
• D. Gamete formation $\to$ fertilisation $\to$ embryo $\to$ zygote

Answer 1

The correct option is A Gamete formation $\to$ fertilisation $\to$ zygote $\to$ embryo

Sexual reproduction involves formation of male and female gametes. These gametes fuse with each other. This process is called fertilisation. It results in the formation of single celled zygote. Zygote undergoes repeated mitotic divisions to form embryo. Embryo is implanted in the uterus for further development.