The first stage of development in which a cavity appears is the__________?

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The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?

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Vaccine was first developed by_______________?

A. Louis Pasture B. Edward Jenner C. Jaber Ibn Hayan D. Aristotle...

Pox viruses are_________?

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Number of cervical vertebrae is_____________?

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Factory of Ribosomal systhesis is__________?

A. Cytoplasm B. Nucleus C. Nucleolus D. Endoplasmic reticulum...