Question

fill in the blank question oogenesis is the process of development.

Explanation:

Oogenesis is a biological process related to the formation and development of female gametes (ova or egg cells). In biology, specifically in the subfield of Biology (under Natural Science), oogenesis refers to the development of ova (egg cells). So the blank should be filled with "ovum (or egg cell)" as oogenesis is the process of ovum development.

Answer:

ovum (or egg cell)