A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: A
Solution :
The sporogonium (capsule) of Riccia is the simplest among the liverworts. It lacks both the foot and the seta. There are no elater. Unlike other liverworts the embryo, sporogonium and spore mother cells in Riccia develop no chloroplasts. Thus no photosynthesis occurs there. The sporophyte remains totally dependent upon the gametophytic thallus.
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