STD 12 - 10. biotechnology and its application — BIOLOGY STD 12 Science — Question

$I.$ Communication was not easy

$II.$ Concept of factors which did not blend was not accepted

$III.$ Use of mathematics to explain biological problem was unacceptable

$IV.$ He could not provide any physical proof for the existence of factors Choose the right combination

$(i)$ Differentiation of megaspore mother cells

$(ii)$ Meiosis of the megaspore mother cell

$(iii)$ Formation of a linear tetrad

$(iv)$ Mitotic division of the functional megaspore

$(v)$ Degeneration of 3 megaspores

$(vi)$ Formation of embryo sac

$(vii)$ Fusion of polar nuclei

The correct sequence is