What would result if a defect in gastrulation caused too little mesoderm inside the embryo?
A)Too little endoderm,resulting in missing gut and organs
B)Too little ectoderm,resulting in missing nervous system or skin
C)Problems in muscle development
D)Too little protoderm,resulting in missing organs

Question

Quizplus · Accepted Answer

Mesoderm is the germ layer that gives rise to muscles, bones, and other connective tissues. If there is too little mesoderm, there will be problems in the development of these structures. Therefore, choice C is the best answer. A defect in gastrulation causing too little mesoderm would not directly affect the endoderm (choice A) or ectoderm (choice B). It would also not affect the protoderm (choice D), which is not a germ layer involved in gastrulation.

What Would Result If a Defect in Gastrulation Caused Too