Human Reproduction Question 98
Question: An avian blastula is called
Options:
A) Blastocyst
B) Trophoblast
C) Blastoderm
D) Foetal blastula
Show Answer
Answer:
Correct Answer: C
Solution:
Disc shaped blastula (Discoblastula) is formed by meroblastic discoidal cleavage as in fishes, reptiles, birds and egg laying mammals.
The disc formed is called blastoderm.