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.
what is plasmalemma?
Hypothermia : Hypothermia reduces the metabolic requirements of the body thereby reducing oxygen consumption. It also preserves high-energy phosphate stores of the body. At norma
Direction of Energy Flow Now let us consider the first point that is the direction of flow of energy. Energy flows from lower (producer) to higher (herbivore, carnivore, etc.)
Question 1 Discuss the quantitative methods for the estimation of urinary proteins. What are the instructions to be given to a patient while collecting urine for biochemical exami
Define role of Lipids in Controlling Gene Expression? In the lipogenic pathway, the genes that encode the enzymes of the fatty acid synthase complex are co-ordinately expressed
Ur o l it h i a s i s The presence of calculi (urolith) in the urinary system is termed as urolithiasis, and the disease is characterized by distension of bladder and
Describe about diagnostic approach for congenital heart disease ? In this section we propose to outline the principles of a diagnostic approach that is applicable to newborns,
Explain about the physiology of eyelid movements. Physiology of Eyelid Movements: It is quoted that the eyelids move more than any other part of the body. The major movem
The classification was given by Spaulding and is based on the contact with different tissue types to determine whether sterilization or disinfection is needed. 1. Critical item
How do derived characters help cladistic taxonomists determine phylogenetic relationships? A derived character is found only between members of a particular group. Thus, cladi
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