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!
Nucellus - Ovule
Enclosed within the integuments lies a homogenous mass of tissue which is termed as the nucellus. This is the tissue in which the female gametophyte differentiates and develops. At an early stage of ovule development, usually an archesporial cell or a group of cells differentiate in the hypodermal region of the nucellus. The archesporial cell may function directly as the sporogenous cell. In such situations, the sporogenous cell also remains hypodermal in position and is surrounded by a single-layer of nucellus, in the micropylar region. Such ovules are known as tenuinucellate. These are commonly seen in Sympetalae.
Figure: Tenuinucellate ovule of Elytraria acaulis. In c and d integuments are not shown.
Environment All organisms are intimately dependent on the environment from which they derive their sustenance. Organisms from virus to man are obligatorily dependent on the envi
Why is iodine important for human beings? Iodine is a fundamental chemical element for the proper functioning of the thyroid since it is part of the hormones produced by this g
How does a plasma membrane regulate movement of molecules into and out of a cell?
Describe the process of biosynthetic phase of photosynthesis occurring in the chloroplast. Explain the process of development of root nodules in a leguminous plant. Name the ox
discuss why obelia is considered to be of special interest in zoology as an animal showing an intermediate grade of organisation
In which environments do bacteria live? Bacteria can be found in various environments throughout the planet. There are bacteria in the air, in fresh water, on the surface, in t
Define Precautions for Determination of Haemoglobin Content in Blood 1. Potassium cyanide is highly toxic and hence drabkin's solution should not be pippeted by mouth. 2. Dr
What are the penetrance and the expressivity of a gene? The Individuals that carry a same genotype don't always manifest in an identical manner the correspondent phenotype. The
What is the goal of risk assessment? The goal of risk assessment is to provide risk managers, who might be, for example, government regulatory officials, industry health a
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
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