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!
Inter specific Incompatibility
This type of incompatibility is characterized by the prevention of fusion of gametes between members of different species. The incompatibility factors also operate after fertilization and cause eventual breakdown and failure of embryo development. The factors that prevent seed set following inter specific crosses have not been worked out. It is however apparent that rejection reaction may operate at any level. In Petunia the morphological abnormalities of the pollen tube are similar in both self and inter-generic incompatibility.
The inhibition may result from unilateral incompatibility, or incongruity or a passive rejection may operate. Inter specific incompatibility involves non-proteinaceous substances besides the stigma surface proteins. Phenolics and carbohydrates also seem to play an important role. It is believed that more than one gene at different loci controls the inter specific incompatibility. In crosses between incompatible species either fertilisation does not occur or the hybrid embryo aborts due to either inadequate development of endosperm or lack of support from endosperm.
what is qualities of phylum porifera
Q. What is coronary bypass graft? The Coronary artery bypass graft is a kind of surgical myocardial revascularization that is a way to provide blood to a myocardium whose blood
Explain about the Complete proteins? We now know that proteins are composed of amino acids and that proteins differ in their amino acid make-up. Proteins lacking in one or more
What is Abscess and Gingival Biotype Abscess: Rule out any presence of Periapical or /and Periodontal abscess Gingival Biotype: Thickness of the gingival is an important
Q. Important Herbaria? The herbarium is a place where dried and mounted specimens are stored according to any recognised system of classification. Special attention is paid tow
A n a e r o b i c lagoon system This specific system of liquid manure handling is restricted to organized dairy farms, where the flushed manure is directed into an anae
Q. What is the difference between diffusion and osmosis? Osmosis is the phenomenon of movement of solvent particles in general, water from a region of lower solute concentratio
Acute Glomerulonephritis If you review the anatomy of urinary system you will recall that nephron is the working unit of kidney and its number exists in millions. Within t
What is the meaning of Cardiovascular System ? The cardiovascular system takes care of the distribution of gases, nutrients, hormones, immune elements, and the removal of waste
Determine Guidelines for Planning Balanced Diets for Elderly? The key element in planning diets for the elderly should be nutrient-based dietary guidelines, in order to reduce
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