Already have an account? Get multiple benefits of using own account!
Login in your account..!
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!
Fluorescence microscopy coupled with biochemical analysis has helped resolve the differential activity of the enzyme, β-l, 3- glucanase that catalyses the dissolution of callose. The enzyme activity is relatively low during the first meiotic division but reaches its peak at the time of spore release. This sequence of events controlling the enzyme activity is important, as an early dissolution of callose may lead to sterility. Use of autoradiographic and fluorochromatic techniques demonstrated the reduced permeability of the callose wall and the resultant chemical isolation of microspores.
A combination of phase-contrast and fluorescence microscopy also revealed that the callose wall during exins formation serves as a mold or template. Factors that trigger the onset and regulation of meidsis in anther and ovule can be worked out by employing labeled reagents. Biochemical studies through isoenzyme markers have already demonstrated specific stages of meiotic process. There is an increase in the activity of acid phosphatase at zygotene, followed by subsequent decline. At pachytene, marked activation of endonucleases is recorded. Isoperoxidases serve as markers in normal pollen development in Mercurialis annua.
Q. Investigations process of constrictive pericarditis? Electrocardiogram Low voltage complexes can occur. Left atrial enlargement may be seen. Atrial fibrillation occu
Assume your tilapia fish muscle homogenate has a protein concentration of 5769 ?g/ml. You take 32.5 ?l of this fish homogenate, mix it with 12.5 ?l sample buffer and 5 ?l reducing
Isoniazid Serum aminotransferase activity increases in 10% to 20% of patients taking isoniazid, especially in the early weeks of treatment, but often returns to normal even wh
Define Immediate and Longer term Adjustment to Altitude Hypoxia? Arterial hypoxia precipitates the immediate physiological adjustments to altitude and process of acclimatizatio
Describe the Frequency of low-risk coronary patients? For many low-risk coronary patients, particularly those following myocardial revascularization procedures, rehabilitation
Conjugated Proteins Conjugated proteins are composed of easy proteins combined with a non- proteinous substance. The non-proteinous substance is known as prosthetic group o
Food Pyramid The diabetes food pyramid divides food into six groups. These groups vary with each other on the basis of size occupied in the pyramid. The largest i.e. grains, br
Adverse effects of rifamycin No severe adverse effects were observed in clinical trials with rifaximin. There have been a few postmarketingeports of hypersensitivity reactions
Illustrate about the Intra-ocular pressure It is the pressure maintained inside the eye above the atmospheric pressure. It is higher than fluid pressure in any other tissue (2-
Classification of the river zones The course of a river can be classified in two ways Firstly by its physical characteristics and Secondly by the presence or absen
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