Vascularization refers to the process of vascular bundle formation from procambium in plants. Initially, thin-walled, elongated procambium strands are generated during early growth and differentiation. These strands subsequently undergo immediate differentiation, giving rise to both primary xylem and primary phloem simultaneously. Following procambium development, primary vascular tissues are formed. It's important to note that secondary xylem arises from the vascular cambium during secondary growth, rather than originating directly from procambium.
So, the correct option is (B): Differentiation of procambium followed by the formation of primary phloem and xylem simultaneously
Which of the following microbes is NOT involved in the preparation of household products?
A. \(\textit{Aspergillus niger}\)
B. \(\textit{Lactobacillus}\)
C. \(\textit{Trichoderma polysporum}\)
D. \(\textit{Saccharomyces cerevisiae}\)
E. \(\textit{Propionibacterium sharmanii}\)
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
Predict the major product $ P $ in the following sequence of reactions:
(i) HBr, benzoyl peroxide
(ii) KCN
(iii) Na(Hg), $C_{2}H_{5}OH$
AB is a part of an electrical circuit (see figure). The potential difference \(V_A - V_B\), at the instant when current \(i = 2\) A and is increasing at a rate of 1 amp/second is:
Secondary growth is an increase in girth of thickness of the axis due to activity of lateral meristem. The tissues involved in secondary growth are two lateral meristems are vascular cambium and cork cambium.