A) Blastula-Morula-Zygote-Gastrula- Embryo
B) Zygote-Blastula-Morula-Gastrula-Embryo
C) Zygote-Morula-Blastula-Gastrula- Embryo
D) Gastrula-Morula-Zygote-Blastula- Embryo
Correct Answer: C
Solution :
Following fertilisation, the mitotic division starts as the zygote moves towards the isthmus of the oviduct towards the uterus called cleavage. The cleavage converts the egg into a compact mass of blastomeres called morula, which ultimately transforms into blastula. The blastula precedes the formation of the gastrula in which the germ layers of the embryo forms. Gastrulation is followed by organogenesis, when individual organs develop within the newly formed germ layers. Each layer gives rise to specific tissues and organs in the developing embryo. Thus, the correct sequence is Zygote \[\to \]Morula\[\to \] Blastula \[\to \] Gastrula \[\to \] Embryo.
You need to login to perform this action.
You will be redirected in
3 sec
