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!
Operculum - Seed Appendages
The term operculum is applied to a plug-like structure formed in the micropylar portion of the seed by proliferation of cells at the tip of the inner integument or the nucellus. An operculum has been observed in seeds of many monocotyledonous families, such as the Commelinaceae, Musaceae, Lemnaceae and Zingiberaceae, and a few dicotyledonous families like Bignoniaceae and Nymphaeaceae.
In Lemna paucicostata, cells at the tip of the inner integument undergo a remarkable expansion after fertilization and form a dome-shaped, stopper- like operculum. Cells of the operculum are thick-walled and contain an orange-red substance. During germination of the embryo the operculum becomes detached from rest of the seed and facilitates emergence of the embryo.
Types of Aortic Stenosis: Obstruction to left ventricular outflow is commonly at the valvar level. Less commonly it is at the sub valvar or supra valvar level. Sub valvar ob
Japanese encephalitis Japanese encephalitis (JE) is a mosquito-borne encephalitis and is caused by flavivirus belonged to the family Flaviviridae. It is a zoonotic disease, i
Q. What are the periods of the second meiotic division? Meiosis II is divided into metaphase II, prophase II, anaphase II and telofase II.
Please I need short notes on polyphylrtic theory
Q. Causes of Diabetic Ketoacidosis? The causes of Diabetic Ketoacidosis (DKA) are the following: - Missing of insulin injection - Infection - Trauma (injury) - Myoc
Bleeding Bleeding from injury to small blood vessels pushed along the lateral wall of expanding maxillary sinus should be contained by bone wax or electrocautery rather than cr
Explain the Clinical manifestations for Obesity? You must have observed that your overweight friends and colleagues seem to have less energy which makes them an easy prey for f
Define Source of Electrons - Growth of Microorganism? Depending upon the source of electrons used by microorganisms, these are known as - a) Lithotrophs (rock eaters) - use
The word 'smog' consists of two words 'smoke' and 'fog'. This name was given because Fog in the atmosphere Condense on the carbon particles of smoke to form smog. There are two typ
Q. Counselling skills used in diabetes mellitus? Information gathering is an important skill for understanding of the client. Behaviour is complex and, therefore it is importan
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