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.
Question Write a short note on the following: 1 Gram staining 2 Embden-Meyerhoff-Parnas pathway 3 Interferons 4 Probiotics 5 Pasteurization 6 Endospores
How have brain-imaging methods such as PET and MRI affected neuroscience research and clinical care? Techniques which capture pictures of the living human brain at work have be
Following fertilization by a normal sperm, what chromosome condition is created?
Q. Where in mitochondria does the process called respiratory chain occur? Which are the products of the Krebs cycle used in that final phase of the aerobic respiration? Respira
Therapeutic diets - Qualitative methods Qualitative methods: This is where you give the individual choices, clear guidelines, menu guidance and supporting information su
Birth of Genetics Modern genetics originated with Gregor Mendel's work. It is based on this paper entitled "Experiments in Plant Hybridisation " published in 1866 inqthe Procee
Oxidized starch Coating and sealing agent, emulsifier, dough conditioner for bread, binding agent as gum Arabic replacer, lemon curd manufacture, salad cream, mayonnaise.
Inversion We know that atmosphere is heated from below and warm air rises, but air can be prevented from rising by a condition known as inversion. An inversion refers to a situ
Give two examples in each case of (a) continuous, (b) discontinuous variation in human populations. a) Continuous variation: for example, weight, height, intelligence, ha
Define the Different Forms of Protein Energy Malnutrition? The term PEM is used to describe a wide range of clinical conditions ranging 'from the very clinically detectable flo
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