After the blastula stage what is the following stage of the embryonic development? How is the passage from blastula to the next stage called?
5What is the function of the vitellus in the vertebrate egg? How are these eggs classified according to the amount of vitellus within them?
5What are the main substances transferred from the mother to the fetus through the placenta and from the fetus to the mother?
5What is the cell division during the first stage of the embryonic development called? How is this stage characterized?
5After the morula stage what is the next stage? What is the morphological feature that defines that stage?
5
How is the neural tube formed?
What are the archenteron and the blastopore? What are the destinations of the archenteron and of the blastopore?
Classify the animals based on the germ layers in their embryonic development?
What is coelom? Are all animals coelomate?
After the morula stage what is the next stage?
What are peritoneum?
What is gastrulation? How during gastrulation are the first two germ layers formed?
What are the archenteron and the blastopore?
What is notochord? How is this structure formed?
What are the cells produced in the first stage of the embryonic development called?
What is the function of the vitellus in the vertebrate egg? How are these eggs classified according to the amount of vitellus within them?
What are twins? Genetically what are the two types of twins that can be generated?
What are the main substances transferred from the mother to the fetus through the placenta and from the fetus to the mother?
Explain monozygotic and dizygotic twins?
What is gastrulation? How during gastrulation are the &rst two germ layers formed? Which are these germ layers?