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

What is radiographic assessment, What is Radiographic Assessment Radio...

What is Radiographic Assessment Radiographic Assessment: Radiographic examination is very different with implants than with teeth. Radiographs are frequently used in implant

What are the fruiting bodies present in some fungi, What are the fruiting b...

What are the fruiting bodies present in some fungi? Fruiting bodies are structures made of hyphae that project radially from the superior portion of the peduncle of some fungi.

Skin., what is the difference between fair skin and dark skin?

what is the difference between fair skin and dark skin?

Pathophysiology and assessment of iron deficiency anaemia, Pathophysiology ...

Pathophysiology   Insufficient  amount of iron present in the body leads  to reduction in serum transferrin (Serum betaglobulin, which binds and transports iron) saturation.  T

Fertilisation, Fertilisation: Fertilisation is the process of fusion...

Fertilisation: Fertilisation is the process of fusion of male and female gametes. For fusion of male and female gametes, pollen grains have to reach the surface of the stigm

Why is an s strain of bacteria able to cause disease, Why is an S strain of...

Why is an S strain of bacteria able to cause disease in mammals but a R strain is not? The slippery capsule stops the cells of the defence system from capturing and destroying

Waxes, WAXES These are monoglyceride compounds. They are chemical...

WAXES These are monoglyceride compounds. They are chemically inert (due to absence of double bonds) and insoluble in water. On heating they become soft and pliable

Tumor suppressor genes, Tumor Suppressor Genes Tumor suppressor genes...

Tumor Suppressor Genes Tumor suppressor genes or anti-oncogenes generally inhibit cell division in cooperation with proto-oncogenes. The very existence of these genes prevent

Congestive heart failure (chf), C o ngestive heart failure (CHF) The ...

C o ngestive heart failure (CHF) The heart is unable to maintain circulatory equilibrium at rest and congestion of venous circuit takes place followed by dilatation of vessel

Biologyical problem, Ask question #Minimum 100 hhejejhjehjwords accepted#

Ask question #Minimum 100 hhejejhjehjwords accepted#

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