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.
Q. What is the difference between primary ecological succession and secondary ecological succession? The Primary ecological succession is the changing sequence of communities f
Determine the Procedure of Armamentarium 1. Make an impression of the mandibular ridge and pour the cast in type 3 gypsum 2. Apply separating medium and allow it to dry 3
Explain Inhibition of cancer cell proliferation and growth? Vitamin D diminishes proliferation of abnormal intestinal, lymphatic, mammary and skeletal cells and provides a pote
Ask Prepare a 2-4 page summary of nucleic acid amplification techniques that are being explored in the development of nucleic assays for clinical use. Research and identify a mo
All plants and animals have a natural microflora associated with them. For example, the plants have a natural microflora associated with the surface of roots, stems, leaves e
Treatment and Nursing Management The initial treatment is surgical repair of the cleft. The timing of the repair varies from surgeon to surgeon, but most prefer cleft lip rep
What is adaptive convergence? The Adaptive convergence is the phenomenon by which living beings facing the same environmental pressure (problems) and undergoing genetic variabi
Q. How different is the growth according to the biotic potential of a viral population from the growth according to the biotic potential of a bacterial population? The growth c
What type of metamorphosis do spongs go through is it reteogressive?
Non-threshold approaches For genetic carcinogenes, the "NOEL-safety factor" approach is generally not considered a suitable method for setting the acceptable intake level
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