MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Sexual Reproduction in Flowering Plants

In which of t...

Question

In which of the following plants, pollen is released before the stigma becomes receptive in the same flower.

A

Allium

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Colchicum

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Datura

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Solanum

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Allium
Condition in which stamens mature earlier than pistils Is known as protandry. Therefore pollen is released before the stigma becomes receptive in the same flower. This condition is found in Allium. So answer is A.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Which of the following is true about autogamy?
I. Pollen grains are deposited on the stigma of the same flower.
II. It requires synchrony in pollen release and stigma receptivity.
III. Autogamy cannot occur without pollinating agents.
IV. Anthers and stigma needs to be close.

Q. Which of the following is an outbreeding device?

a. If pollen release and stigma receptivity are not synchronized.

b. If the anther and stigma are placed at different positions so that pollen cannot come in contact with the stigma of the same flower.

c. Self-incompatibility which prevents self-pollen (from the same plant) from fertilizing the ovules by inhibiting pollen germination or pollen tube growth in the pistil.

d. Production of the unisexual flower.

Q. ________ is a form of pollination in which pollen from the same plant arrives at the stigma of a flower.

Q. Self-incompatibility prevents pollen tube formation by pollen grains on the stigma of __________.

I. same flower
II. other flowers of the same plant
III. any plant in the same division

Q. Transfer of pollen to the stigma of another flower of the same plant is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Introduction

BIOLOGY

Watch in App

explore_more_icon

Explore more

Sexual Reproduction in Flowering Plants

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon