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: E
Solution :
Under unfavourable conditions, a myxamoeba secretes a rigid cellulose wall to form the microcyst. On the return of favourable conditions, the microcyst wall ruptures to release a myxamoeba. In the sexual reproduction process, the myxamoebae form clusters. The central myxamoeba of the cluster engulfs a surrounding myxamoeba to become larger structure which forms a thick wall to form the zygote. This zygote is called microcyst.
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