Which one of the following statements is correct?

  • A
    Cleistogamous flowers are always autogamous.
  • B
    Xenogamy occurs only by wind pollination.
  • C
    Chasmogamous flowers do not open at all.
  • D
    Geitonogamy involves the pollen and stigma of flowers of different plants.

Explore More

Similar Questions

Match the following:
Column-$I$ Column-$II$
$(1)$ Grasses $(P)$ Prevent autogamy and geitonogamy
$(2)$ Hydrilla $(Q)$ Wind pollination
$(3)$ Cleistogamous flower $(R)$ Water pollination
$(4)$ Papaya $(S)$ Autogamy

How many meiotic divisions are required to produce $100$ seeds/grains of wheat?

In the figure given below,label the following parts: male gametes,egg cell,polar nuclei,synergid,and pollen tube.

Which of the following statements is applicable to all flowering plants?

Which of the following cells of the embryo sac degenerate after fertilisation in angiosperms?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo