Pollination, Biology

Assignment Help:

Pollination

Pollination refers to the transfer of pollen from dehiscing anthers to the pistil. Unlike animals, plants cannot move to their mates for sexual reproduction. Hence, they need some external device or agency for the transfer of pollen grains from the male parent to the stigma of the female parent. Exceptionally, in Vallisneria, an aquatic plant, complete male flower may be transported to the female flowers, the physical (wind and water) and biological (insects, birds and bats) agencies promote cross-pollination. The dehiscence of anthers and the transfer of pollen are the prime requirements of pollination.


Related Discussions:- Pollination

Define sweetness as a function of sugar, Define Sweetness as a Function of ...

Define Sweetness as a Function of Sugar? Sweetness is the most recognized functional property of sweeteners. Our preference for sweetness, regarded as innate, is apparent soon

Explain class oligochaeta - earthworms in details, Explain Class Oligochaet...

Explain Class Oligochaeta - Earthworms in details? This group of annelids includes the earthworms. Oligochaetes live in the soil or in fresh water habitats, and a few inhabit m

Define thin layer chromatography, Define Thin Layer Chromatography? Thi...

Define Thin Layer Chromatography? This is an improvement over paper chromatography and uses thin layers of slurried absorbents like silica gel, alumina, cellulose, Kieselguhr,

Whta is restrictions enzymes, A restriction enzyme or restriction endonucle...

A restriction enzyme or restriction endonuclease is an enzyme which cuts DNA at particular recognition nucleotide sequences with Type II restriction enzymes cutting double-stranded

Fluorescence microscopy, Fluorescence Microscopy Certain compounds when e...

Fluorescence Microscopy Certain compounds when exposed to short wavelength radiations, e.g., UV and X-rays. absorb and emit energy as light of a longer wavelength. This process o

Classification of protein based on shape, Protein Classification Based on S...

Protein Classification Based on Shape There are three types of proteins on the basis of shape - Fibrous, Globular, Intermediate 1 .       FIBROUS PROTEINS They ar

Mitral valve replacement with allograft , Mitral Valve replacement with All...

Mitral Valve replacement with Allograft (Mitral homograft) :  C. Acar and colleagues used mitral allograft for mitral valvc replacement using a new technique of fixation of p

Explain briefly protein hydrolysates, Explain Protein hydrolysates It i...

Explain Protein hydrolysates It is valued for their superior nutritional qualities, including increased bioavailability and reduced antigenecity. Several enzymatic modification

Potential disadvantages - digitalis glycosides, Arrhythmias especially in p...

Arrhythmias especially in presence of hypokalemia, lack of mortality benefit. However, their efficacy in reducing the symptoms of heart failure has been established. Digoxin should

Class of crustacea - ostracoda, Class of Crustacea - Ostracoda General...

Class of Crustacea - Ostracoda Generally called mussel or seed-shrimps, Ostracoda include both fresh water and marine forms. The small crustaceans, computing a few mm have the

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