What do flowering plants develop many devices | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Flowering plants have evolved several 'outbreeding devices' to discourage self-pollination and encourage cross-pollination. Self-pollination leads

Vedclass · Accepted Answer

Self-pollination

Vedclass · Answer

(D) Flowering plants have evolved several 'outbreeding devices' to discourage self-pollination and encourage cross-pollination. Self-pollination leads to inbreeding depression over successive generations,which reduces the genetic diversity and fitness of the plant population. Common outbreeding devices include: $1$. Dichogamy: Pollen release and stigma receptivity are not synchronized. $2$. Herkogamy: Anther and stigma are placed at different positions so that pollen cannot come in contact with the stigma of the same flower. $3$. Self-incompatibility: $A$ genetic mechanism that prevents self-pollen from fertilizing the ovules. $4$. Production of unisexual flowers. Therefore,the correct answer is $D$.

Column-$I$	Column-$II$
$i$. Protandry	$a$. Calotropis
$ii$. Prepotency	$b$. Tobacco
$iii$. Self sterility	$c$. Sunflower
$iv$. Herkogamy	$d$. Apple

What do flowering plants develop many devices to prevent?

Similar Questions

List three strategies that a bisexual chasmogamous flower can evolve to prevent self-pollination (autogamy).

What do plants develop various devices to promote?

Match the following contrivances from Column-$I$ with their examples in Column-$II$.
Column-$I$ Column-$II$
$i$. Protandry $a$. Calotropis
$ii$. Prepotency $b$. Tobacco
$iii$. Self sterility $c$. Sunflower
$iv$. Herkogamy $d$. Apple

When the anthers mature earlier than the stigma of one's own flower,the condition is known as

Heterostyly is a contrivance for . . . . . . .

Vedclass Test Series

Exam Paper Generator

Online Exam Module