The branch of botany that deals with the internal study of plants is called .........

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:

$A$ : Bast fibres are collenchymatous fibres.
$R$ : Fibres are absent in secondary phloem.

The branch of botany that deals with the study of the internal organization of plants is:

Select the correct options from the following:
$(i)$ Sapwood / Heartwood appears dark brown in color.
$(ii)$ Generally,pith is absent in Dicot root / Monocot root.

Presence of vessels in the wood is: