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!
Gametophytic Incompatibility
In GSI systems callose deposition is not evident on the stigma but is very conspicuous in the pollen tube. Sometimes the callose deposition occurs even in the germpore, inhibiting pollen germination. In the Poaceae, the rejection reaction is completed within a few minutes after pollination and subsequent rejection or acceptance takes 10 minutes with the exception of Poaceae and Oenothera, the recognition/rejection reaction in GSI system occurs after the pollen tube has grown about two third the length of the style.
Genetically the recognition factor on the male side has been attributed to the male gametophyte; the proteins incorporated during pollen wall development in the intine are involved. Since in GSI systems the rejection reaction is comparatively delayed, is also possible that the synthesis or activation, and release of the recognition substances are also delayed and they occur in the pollen tube. In some species the tubes show reduced level of carbohydrates and starch.
The vast amount of genomic DNA in a eukaryotic cell is strongly packaged in chromosomes having within a specialized organelle and the nucleus. This very vast amount of e
Describe Meristems term in diversity of life? Plant development goes through a stage known as primary growth, which produces what is referred to as the "primary plant body." A
Diagnosis X-ray chest shows cardiomegaly. ECG shows conduction defect, low voltage QRS, atrial and ventricular disrhythrnias. Echocardiogram - decreased LV cont
general Characters
How Can Total Count Can Be Obtained? Total count can be obtained microscopically by using fluorescent dyes such as acridine orange or DNA stain DAPI. The counts obtained micros
Enumerate the term - pathognomic sign A comprehensive assessment ideally uses all four approaches. Some forms of specialised assessment rely heavily on pathognomic signs, behav
Explain the Sticky Films - Food Microbiology? Sticky films or tape are pressed against the surface to be assessed. Exposed film/tape is then pressed on the agar plate and analy
Pre-surgical Prosthodontics Radiographic investigation: The radiologic investigations are critical to evaluate the bone quality and bone quantity. 1. Panoramic Radiograph
Susceptible Organisms When infection proves to be caused by a fully susceptible strain of TB, the initial phase of treatment should include isoniazid, rifampin and pyrazinamid
Q Do fishes present an closed or open circulatory system? How many chambers does a fish heart have? How does blood flow throughout the fish body? As in every vertebrate the cir
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