Find one word for the following statements and choose the correct option
(I) Residual, persistent nucellus in seed-A
(II) Microspores arranged in a cluster of four cells-B
(III) Special cellular thickening at the micropylar end of embryo sac-C
(IV) Development of seeds without fertilization-D

A-Perisperm, B-Megaspore tetrad

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C-Filiform apparatus, D-Apomixis

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A-Endosperm, C-Micropyle

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B-Microspore tetrad, D-Amphimixis

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Solution

The correct option is B C-Filiform apparatus, D-Apomixis
A $\to$ Perisperm, B $\to$ Microspore tetrad, C-Filiform apparatus, D-Apomixis

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In some seeds, remnants of nucellus are also persistent. This residual, persistent nucellus is the

Match the following

Column-I Column-II

(i) Micropyle (a) Opposite to Micropyle

(ii) Chalaza (b) Female gametophyte

(iii) Embryo Sac (c) Pore of the ovule

(iv) Nucellus (d) Nutritive tissue

(v) Ovule (e) Integumented megasporangium

\begin{matrix} C o l u m n I & C o l u m n I I A . P a r t h e n o c a r p y & (i) S e e d f o r m a t i o n w i t h o u t f e r t i l i s a t i o n B . P o l y e m b r y o n y & (i i) M o r e t h a n o n e e m b r y o i n s a m e s e e d C . A p o m i x i s & (i i i) S e e d l e s s f r u i t s w i t h o u t f e r t i l s a t i o n D . S o m a t i c e m b r y o g e n e s i s & (i v) E m b r y o d e v e l o p s f r o m a s o m a t i c c e l l \end{matrix}

Match the following

\begin{matrix} Column-I & Column-II (i) Micropyle & (a) Opposite to Micropyle (ii) Chalaza & (b) Female gametophyte (iii) Embryo Sac & (c) Pore of the ovule (iv) Nucellus & (d) Nutritive tissue (v) Ovule & (e) Integumented megasporangium \end{matrix}

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