Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Pollenkitt - Pollen Wall
The lipoidal layer found on the outside of the mature pollen grains of many insect pollinated species is known as the pollenkitt. In addition to lipids it is made up of flavonoids, carotenoids and degeneration products of tapetal proteins. The carotenoids are responsible for its characteristic yellow or orange color. The function of pollenkitt is not clear. It is believed to act as an insect attractant, help in pollen dispersal and in protecting against the damaging effects of UV rays. Deposition o flavonoids appear important for the nod functioning of pollen. In maize it has been shown that the pollen grains that lack flavonoids are incapable of developing tubes that are effective in fertilization. Lipids also help in checking water loss after anther dehiscence and discharge of pollen.
Functional Regurgitation : Dilatation of right ventricle and tricuspid annulus leads to regurgitation. This is the most common type associated with mitral valve disease and
The stress lab must have the following equipment: 1) A mercury Blood Pressure apparatus. 2) A Bed so that the patients ECG can be recorded in the recovery period in supine po
Q. Direct use values of biodiversity? Direct use values are for those goods that are ensured directly e.g. food and timber. Maintaining a wide range of components of biological
MALE REPRODUCTIVE DISORDERS Generally, about 5-10% of cattle bulls reaching sexual maturity would be suffering from poor reproductive efficiency or sterility. Crossbreeding ha
Photosynthetically Active Radiation This is usually in direct proportion with the incident solar radiation, you know that tropic$ are probably the best illuminated part of the
Centimorgan (cM) is the unit of measure of a statistical probability recombination frequency between the alleles. One centimorgan is equal to the 1% chance that a marker at one ge
Imagine a population evolving by genetic drift in which the frequency of allele K is 0.65. What is the probability that at some point in the future allele K will drift to a frequen
Morphological changes Aquatic plants produce different kinds of leaves and produce aerenchyma (tissues with air gaps) where there be a need to do so. Also, a thick cuticle on
Forebrain 1 . OLFACTORY LOBES - 1 pair, very small, solid, club shaped, separated from each other. Fully covered by cerebral hemispheres on dorsal side, clear on
What are the illustrations of the civil law? Illustrations of the civil law: Illustrations of civil actions are defamation of breach, character of contract, trespassing or
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd