MCQ
Perisprem is
- ✓Remnents of nucellus
- BRemnents of embryo
- CRemnents of endosperm
- DNone of these
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| Column $I$ | Column $II$ |
| $(i)$ Tricoderma | $(a)$ Deuteromycetes |
| $(ii)$ Yeast | $(b)$ Basidiomycetes |
| $(iii)$ Bread mould | $(c)$ phycomycetes |
| $(iv)$ Smut | $(d)$ Ascomycetes |
Reason : Presence of insert results in inactivation of enzyme $\beta -$ galactosidase known as insertional inactivation.
$R$ : This intercalating agent absorbs light in range $260 -330 \;nm.$