Question Detail
Question
During cleavage (first week), the zygote undergoes rapid mitotic divisions WITHOUT increasing in size, forming a solid ball called the:
Correct Answer
Option C is the correct answer.
Detailed Explanation
The zygote undergoes rapid mitotic cell divisions without increasing in size, forming a morula (a solid ball of cells). This occurs during the first week after fertilization.
Hint
This solid ball of cells forms before the blastocyst stage.