Question
State one advantage and one disadvantage of cleistogamy.
Solution
Cleistogamous flowers are flowers which do not open at all.
Advantage of cleistogamy:
Cleistogamous flowers produce assured seed-set even in the absence of pollinators that is they can propagate themselves even under unfavourable condition.
Disadvantage of cleistogamy:
Cleistogamous flowers undergo self pollination only, which reduces the chances of variation and evolution of genetically superior progeny.
