AP PSYCHOLOGY

DEVELOPMENTAL PSYCHOLOGY

PRENATAL DEVELOPMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The proper order of embryonic development is
A
morula-cleavage-blastula-gastrula.
B
blastula-cleavage-morula-gastrula.
C
cleavage-morula-blastula-gastrula.
D
gastrula-cleavage-blastula-morula.
Explanation: 

Detailed explanation-1: -Final Answer: The correct sequence of embryonic development is: Zygote-Morula-Blastula-Gastrula-Embryo.

Detailed explanation-2: -The morula is produced by a series of cleavage divisions of the early embryo, starting with the single-celled zygote. Once the embryo has divided into 16 cells, it begins to resemble a mulberry, hence the name morula (Latin, morus: mulberry).

Detailed explanation-3: -So the correct option is ‘Fertilization → Zygote → Cleavage → Morula → Blastula → Gastrula. ‘

Detailed explanation-4: -The one cell embryo undergoes a series of cleavage divisions, progressing through 2-cell, 4-cell, 8-cell and 16 cell stages.

There is 1 question to complete.