Main condition for a plant to perform cross pollination is

⇦

⇨

Main condition for a plant to perform cross pollination is

Options

(a) herkogamy
(b) dichogamy
(c) self sterility
(d) herkogamy & dichogamy & self sterility

Correct Answer:

herkogamy & dichogamy & self sterility

Explanation:

When the pollens are transferred from anther to stigma of different flower on different plant, it is called cross-pollination. It is a rule in unisexual flowers. But it also occurs a large number of bisexual flowers. The main reasons for cross-pollination in bisexual flowers are- dicliny, dichogamy, herkogamy, heterostyly and self sterility. Dichogamy is the condition of bisexual flower in which male and female reproductive parts mature at different times e.g., bajra, cotton, marigold etc. In herkogamy some physical barrier is present between male and female reproductive parts of a flower which prevents self pollination. e.g., Calotropis. In self sterility inspite of viable pollens they are unable to germinate on the stigma of same flower. e.g., radish, Petunia axillaris etc.

Related Questions:

1. The cells of cyanobacteria and bacteria exhibit similarity in having
2. Gibberellin promote
3. In a population of species, in some plants the style is shorter. But in some
4. Which is not the cellular element of blood?
5. If due to some injury the chordae tendinae of the tricuspid valve of the human heart

Topics: Reproduction In Organisms and Plants (129)
Subject: Biology (4253)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends