Question

Development cannot proceed properly unless each stage is successfully completed before the next begins, starting with ______.

Options

• gamete formation

• gastrulation

• fertilization

• cleavage

Answer 1

Development cannot proceed properly unless each stage is successfully completed before the next begins, starting with gamete formation.

Explanation:

• Gamete formation (gametogenesis) is the very first step in reproduction. Without gametes (sperms and eggs), no further stages can occur.
• After this comes fertilization, then cleavage, then gastrulation, and so on.
• Each stage must be completed successfully for the next one to begin, and the entire process starts with the formation of gametes.