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?
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What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and of the blastopore?
What are the endocrine functions of the placenta?
From which germ layer do blood cells originate? What are other organs and tissues made from that germ layer?
How is the neural tube formed? What is the embryonic origin of the nervous system in vertebrates?
What is the cell division during the first stage of the embryonic development called? How is this stage characterized?
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 is notochord?
Explain peritoneum?
What is the germ layer from which the coeloms originate?
Is there exchange of cells between the mother and the fetus through the placenta?
What is the chorioallantois membrane present in the embryonic development of reptiles and birds?
Explain the embryonic development stages after formation of blastula?
Explain the difference between amnion and chorion?
What is polyembryony?
Genetically what are the two types of twins that can be generated?
