Casparian strips occur in

How many histogens are present in the root apex of monocotyledonous plants?

You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?

The secondary wall material suberin is deposited on the walls of

The tissue commonly known as the passport point or biological check post is characterised by:

In dicotyledonous roots,the initiation of lateral roots takes place in