This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Daughter cells formed from the cleavage of zygote are 
Select and explain. 
A. Morula, B. Gastrula, C. Blastula, D. Blastomere
D: Blastomere
Answer: D: Blastomere 
Explanation: Zygote first divide into blastomere, 16 cell stage is known as Morula.