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!
Zygote - Embryogenesis
The fertilized egg or zygote is situated at the micropylar end/pole of the embryo sac, its basal (micropylar) end is attached to the embryo sac wall and apical (chalazal) part projects into the central cell. The zygote usually undergoes a period of rest during which it shrinks. This resting period of the zygote varies with different species and is to some extent dependent on environmental conditions e.g. in Theobroma cacao the zygote divides 14 to 15 days after fertilization, in Oryza saliva zygote divides about 6 hours after fertilization.
A complete cell wall is formed around the zygote. (You would dl that the egg has only plasmalemma and no wall at its apical part). A TEM picture shows that zygote cytoplasm show a more polarized appearance and that is the two poles appear different, micropylar part is vacuolate and chalazal part with a prominent nucleus.
Medical and First Aid - Factors Affecting Occupational Health Depending on the type of work the industry must make arrangement for readily available medical facility. A nearby
Induction of Defensive Barriers in Plants Several polymers deposited near surface of plants form an effective barrier against invasion or stress. Cuticle (which consists of a
What are the main divisions and representing species of the gymnosperms? This group of plants can be divided into conifers (pine, sequoia, cypress), that have flowers known as
Q. Differentiate between sterilization and disinfection? Sterilization is defined as freeing the object or substance from all life of any kind. It is the process by which an ar
Q. What is the important condition for a protein to be identical to another protein? For a protein to be identical to another protein it is necessary for the sequence of amino
How emulsion are formed The most common method of preparing an emulsion is by mechanically dispersing one liquid phase in another by formation of small droplets. This takes pla
Explain the Types of cell Reproduction ? One of the major characteristics of living organisms is their ability to grow and reproduce. This is accomplished by cell division. In
G a ngrenous dermatitis (necrotic dermatitis) A bacterial condition in chickens caused by spores of Clostridium septicum , sometimes that of Cl. novyi / Cl. edematiens a
why manures are better than fertilizers
Explain Cardiac Muscle or heart muscle? Cardiac muscle, or heart muscle, is a striated muscle that occurs only in the vertebrate heart. The heartbeat is controlled by noncontr
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