Question Detail
Question
An egg that has been fertilized by a sperm is called a: a. fetus b. zygote c. embryo d. gamete
Correct Answer
Option B is the correct answer.
Detailed Explanation
A fertilized egg is called a zygote. It is the single-celled stage resulting from the fusion of the male and female gametes. The zygote then undergoes cleavage to form an embryo.
Hint
This is the very first stage, a single cell.