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!
Development of Pollen in Cyperaceae
In all members of the Cyperaceae out of the four nuclei formed after meiosis, only one functions, the others degenerate. The functional nucleus remains in the centre and the three non-functional nuclei are pushed to a side. In Cyphers, Kyllinga, and Scirpus the non-functional nuclei are separated from the functional nucleus by a wall. Walls are also laid between the nonfunctional nuclei. The functional nucleus divides to form a vegetative cell and a generative cell.
The non-functional nuclei may also begin to divide but the divisions are abortive, and they eventually degenerate. Thus in a tetrad, only one pollen grain is functional. This feature is similar to the behavior of megaspores in the development of monosporic embryo sac.
State about the blood ocular barriers of the eye? Blood Ocular Barrier: All vascular beds of the eye are highly permeable to lipoid soluble substances (oxygen, carbon dio
Q. Concerning events during the periods of life how different is the gametogenesis in men and in women? The formation of spermatogonia in men takes place during the embryonic p
Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills.
Procedures for diagnosis Epidemiological data: The epidemiological information with regard to the history, symptoms, morbidity, mortality, seasonality, age, sex, breed and spe
Question 1 Explain Sialography? How will you perform the same? Question 2 How will you set up your radiology department to take up the IVU studies? Question 3 D
Systems of Human Body Many organs work in a coordinated'manner to form a system. For example in our-body the nose, the trachea and the lungs form the respiratory system. Table
A device called a hemocytometer is often used to estimate the number of cells in a culture. Cells are suspended in fluid. A small volume of the fluid is placed into a special chamb
Explain Precautions for Determination of Fungal and Yeast Count? 1. Maintain aseptic conditions. 2. Keep alcohol away from flame. 3. To avoid infections and allergies, ca
Explain the Process of IgE-Mediated Allergic Response? Basically, there are three steps involved with the IgE-mediated allergic response These include: Step 1: Sensitizat
From the following, name the type of mimicry by which a palatable, acceptable insect mimics an unfavorable, noxious insec for protection. a) Batesian mimicry (pron: BATE-see-an
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