(D) The silken threads or 'hair' found on a cob of corn are elongated $styles$ that extend from the ovary to the exterior of the husk to receive polle

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(D) The silken threads or 'hair' found on a cob of corn are elongated $styles$ that extend from the ovary to the exterior of the husk to receive pollen. The terminal portion of these threads acts as the $stigma$. Therefore, they are collectively referred to as $stigmas$ and $styles$.

Class 12 Biology Sexual Reproduction in Flowering Plants The Pistil, Megasporangium (ovule) and Embryo sac

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The hair present on the cob of corn are:

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A
Seed hairs
B
Modified hairs of bracts
C
Styles
D
Stigmas and styles

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Class 12 Questions

Class 12

Biology Questions

Chapter

Sexual Reproduction in Flowering Plants

Subtopic

The Pistil, Megasporangium (ovule) and Embryo sac

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Embryo sac consists of

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The ovule is attached to which of the following?

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Which cell of the embryo sac is the largest cell?

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Identify the different types of ovules in diagrams $A$ to $F$.

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Match List-$I$ with List-$II$:

List-$I$ List-$II$

$A$. Hilum $I$. Residual persistent nucellus

$B$. Perisperm $II$. Basal part of ovule

$C$. Chalaza $III$. Junction between ovule and funicle

$D$. Funicle $IV$. Stalk by which ovule is attached to placenta

Choose the correct answer from the options given below:

List-$I$	List-$II$
$A$. Hilum	$I$. Residual persistent nucellus
$B$. Perisperm	$II$. Basal part of ovule
$C$. Chalaza	$III$. Junction between ovule and funicle
$D$. Funicle	$IV$. Stalk by which ovule is attached to placenta