Q. In which of the following aestivation sepal's petal's one margin covers the other and its margin is covered by previous one?

 1246  218 J & K CETJ & K CET 2006 Report Error

Solution:

In twisted aestivation sepals/petals edges are overlapping each other (i.e.,one margin covers the others and its margin is covered by previous one) whereas in valvate the margins of sepals and petal's only touch to each other.