1. Microlecithal
2. Macrolecithal
3. Oligolecithal
4. Mesolecithal
Macrolecithal
1. Fertilization→zygote→cleavage→morula→blastula→gastrula
2. fertilization→zygote→blastula→morula→cleavage→gastrula
3. fertilization →cleavage→morula→zygote→blastrula→gastrula
4. cleavage→zygote→fertilization→morula→blastula→gastrula
Fertilization→zygote→cleavage→morula→blastula→gastrula
1. Microlecithal
2. Macrolecithal
3. Mesolecithal
4. Alecithal
Microlecithal
1. Mature eggs
2. Acrosome
3. Polar bodies
4. Middle piece of sperm
Mature eggs
1. Zona pellucid,vitelline membrane
2. Allantois,chorion
3. Choroid,vitelline membrane
4. None of the above
Allantois,chorion
1. 25 yr
2. 35 yr
3. 50 yr
4. 70 yr
50 yr
1. Equatorial
2. Vertical
3. Latitudinal
4. None of these
Vertical
1. Fossa ovalis
2. Fenestra ovalis
3. Fenestra rotunda
4. Interauricular aperture
Fossa ovalis
1. Sponge
2. Cnidarians
3. Nematode
4. Ctenophore
Nematode
1. Deuterosome
2. Protosome
3. Blastosome
4. Blastopore
Protosome