X chromosome inactivation in mammals is mediated by

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#Question id: 8933

#Part-B Specialized Branches in Biotechnology

At which developmental stage should one be able to first distinguish a diploblastic embryo from a triploblastic embryo?

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#Question id: 8934

#Part-B Specialized Branches in Biotechnology

At which developmental stage should one be able to first distinguish a protostome embryo from a deuterostome embryo?

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#Question id: 8935

#Part-B Specialized Branches in Biotechnology

What may have occurred to prevent species that are of the same grade from also belonging to the same clade?

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#Question id: 8936

#Part-B Specialized Branches in Biotechnology

Organisms showing radial symmetry would likely

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#Question id: 8937

#Part-B Specialized Branches in Biotechnology

During metamorphosis, echinoderms undergo a transformation from motile larvae to a sedentary (or sometimes sessile) existence as adults. What differentiates echinoderm adults, but not their larvae? Adults should

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#Question id: 8940

#Part-B Specialized Branches in Biotechnology

Which of the following is a correct association of an animal germ layer with the tissues or organs to which it gives rise?