I M.Sc. Developmental Biology II Quiz II Quiz

In chick the cleavage divisions are restricted to _______________

         

•    Blastocentre   

• Blastula      

• Blastodisc    

• Blastoderm

Cell lineage study is to trace the fate map of particular blastomere of the blastula.  

    

• TRUE

• FALSE

Pfluger’s states that the mitotic spindles always elongates in the direction of the least  resistance.      

• TRUE

• FALSE

The area opaca of discoblastula of a chick is also called as _____________.

         

•    Area vitellina      

• Area pellucida   

• Embryo proper 

• None of the above

The fat maps helps to understand the mechanism of ______________.

         

•   Morulation         

• Blastulation   

• Gastrulation 

• Blastomeres

The trophoblast tissue of chick embryo does not have any role in its nourishment.

           

• TRUE

• FALSE

The area pellucida forms the extraembryonic structure.

• TRUE

• FALSE

Emboly involves only the hypoblast layer of the chick embryo.  

• TRUE

• FALSE

The primitive streak of chick embryo can be compared to the blastopore.  

• TRUE

• FALSE

The formation of notochord is called ____________________.

   is

•     Mesogenesis              

• Neurogenesis     

• Notogenesis   

• Organogenes