A) onagrad type
B) asterad type
C) solanad type
D) Both (a) and (b)
Correct Answer: B
Solution :
When both apical cell (Ca) and basal cell (Cb) of the 2 celled proembryo divides longitudinally, the type of embryo would be asterad type, eg, Asteraceae, Balsaminaceae Violaceae, Vitacae. In onagrad type of embryo development, the basal cell plays a minor role or none in development of embryo proper, eg, Annonaceae, Brassicaceae, Pedaliaceae, Ranunculaceae etc. In solanad type of embryo development, 2 celled proembryo divides transversely and the basal cell either plays a minor role or no role in its development. In this type, basal cells usually form a suspensor, eg, Campanulaceae, Linaceae, Solanaceae, Theaceae.
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