Difference between self pollination and cross pollination, Biology

Assignment Help:

What is the difference between self pollination and cross pollination? Which of these two modes of pollination contributes more to the plant diversity?

Self pollination happens when pollen grains from a flowering plant fall into the pistils of the similar plant and thus gametes from the same individual unite to form a zygote. Cross pollination occurs when pollinators carry pollen grains from a plant to reach other individual plants of the same species thus gametes of dissimilar individuals form the zygote.

As it promotes formation of zygotes containing genes from dissimilar individuals (new gene combinations) cross pollination contributes more to biological diversity.

 


Related Discussions:- Difference between self pollination and cross pollination

Special property of a persistent insecticide, a) What is the special proper...

a) What is the special property of a 'persistent' insecticide? b) In what ways is 'persistence' (i) a useful property, (ii) a harmful property?   (a) A persisten

Explain the effect of deficiency of pyridoxine, Explain the effect of Defic...

Explain the effect of Deficiency of pyridoxine? A deficiency of vitamin B6 alone is uncommon because it usually occurs in association with a deficit in other B-complex vitamin

Explain the histologic techniques, Explain the histologic techniques A...

Explain the histologic techniques A clinician has to base the diagnosis only on the clinical and radiographic findings as microbiologic and histologic techniques are restricte

What are the basic constituents of the cell membrane, The cell membrane is ...

The cell membrane is produced of lipids, proteins and carbohydrates. The membrane lipids are phospholipids, a particular type of lipid to which one extremity a phosphate group i

Helobial type - endosperm, Helobial Type - Endosperm This type of endo...

Helobial Type - Endosperm This type of endosperm is intermediate between the nuclear and the cellular types. The division of the primary endosperm nucleus is followed by the f

X-linked dominant genes, X-Linked Dominant Genes Dominant X-linked gene...

X-Linked Dominant Genes Dominant X-linked genes are always expressed in both the sexes just as in autosomal traits. One dose of X-linked dominant allele produces its effects in

Explain theory of enzyme action, Explain Theory of enzyme action L. Mic...

Explain Theory of enzyme action L. Michaelis  and k L. Menten developed a general  theory of enzyme action and kinetics  in  1913. According to this theory, we learnt  that

Define observation or inference for barfoed test, Define observation or inf...

Define observation or inference for barfoed test? 1. Reddish brown precipitate is seen on the sides and bottom of the tube. The precipitate of the sides and bottom indicates th

Define pipette - nutritional biochemistry, Define Pipette - Nutritional Bio...

Define Pipette - Nutritional Biochemistry? Pipettes are used to deliver a known volume of liquid from one container to another. They are precision instruments of measurement an

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd