I scored really low in the RC - even after taking notes. The primary reason was that the passage contains lots of inference questions.
Can anyone suggest an approach for tackling such passages? HongHu..I would appreciate your comments on this
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
(5) 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
(10) by the early investigators, it will not form two whole
A debate arose over what exactly was happening.
Which embryo cells are determined, just when do they218
become irreversibly committed to their fates, and what
(15) are the â€œmorphogenetic determinantsâ€