Cortex is the region found between

The process of extraction of separated DNA strands from gel is called elution.

$(a)$ In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii.
$(b)$ Conjoint closed vascular bundles do not possess cambium
$(c)$ In open vascular bundles, cambium is present in between xylem and phloem
$(d)$ The vascular bundles of dicotyledonous stem possess endarch protoxylem
$(e)$ In monocotyledonous root, usually there are more than six xylem bundles present.

Choose the correct answer from the options given below:

Choose correct sentences :

$(1)$ The meristem which present at the tips of roots and shoots are called apical meristem

$(2)$ Apical meristem are secondary meristem

$(3)$ Intercalary meristem is the meristem that occurs in the mature region of roots and shoots of many plants and appear later than primary meristem :

$(4)$ Fascicular vascular cambium and interfascicular cambium are lateral meristem

What is the difference between lenticels and stomata ?

Assertion : In angiosperms, the conduction of water is more efficient because their xylem has vessels.
Reason : Conduction of water by vessel elements is an active process with energy supplied by xylem parenchyma rich in mitochondria

Which of the following is/are living cells?

$I.$ Vessel, $II.$ Tracheids, $III.$ Companion cells