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10 Oct 2014, 08:38
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GMAT weekly questions
Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos. This led them to believe that the cells in the early embryo are undetermined in the sense that each cell has the potential to develop in a variety of different ways. Later biologists found that the situation was not so simple. It matters in which plane the embryo is cut. If it is cut in a plane different from the one used by the early investigators, it will not form two whole embryos.
A debate arose over what exactly was happening. Which embryo cells are determined, just when do they become irreversibly committed to their fates, and what are the
A. Proteins bound to the nucleus
B. Histones
C. Maternal messenger RNA's
D. Cytoplasm
E. Nonbeaded intervening DNA
OA:
C.
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26 Oct 2014, 03:09
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seems like the question is incomplete... can anyone confirm?
26 Oct 2014, 06:28
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Yes felixthecat,
This question is incomplete... You can find the full question over here:
nearly-a-century-ago-biologists-found-that-if-they-separate-96221.html
This question is incomplete... You can find the full question over here:
nearly-a-century-ago-biologists-found-that-if-they-separate-96221.html
