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!
Histogenesis and Organogenesis
After the octant stage numerous cell divisions occur in various planes. The proembryo become globular or bulb-shaped. As a general rule, some tangential divisions occur in the cells of the octant so that three cells layers are differentiated - the outer dermatogen which later forms the epidermal covering, middle periblem which gives rise to the cortex of the stem and root, and inner plerome that is responsible for the vascular tissue and pith. Such a process of differentiation of cell layers is termed Histogenesis.
Organogenesis or differentiation of the initials of various organs begins in the globular proembryo in such a way that cotyledons (which form the first leaves), epiphysis (which gives rise to the stem ex) and hypophysis (that forms the root cortex and cap) are produced. Since organogenesis differs in dicots and monocots, we may discuss this aspect separately for the two groups of angiosperms with the help of suitable examples.
Explain about the Methods of Food Processing? In the earlier unit we learnt about the principles and traditional methods of food processing. Now in the next two units we will f
Photoperiodism was first characterised in : 1. Tobacco 2. Potato 3. Tomato 4. Cotton Tobacco is the first in whic photoperiodism characterised.
Explain Pedicellaria in brief? Defensive pincerlike structures found on the surface of echinoderms. They are capable of responding to external stimuli independently from the ma
Q. Describe Anthracycline Cardiomyopathy? It is due to anticancer agent doxorubion (Adriamycine), when the cumulative dose exceeds 450 mg/m 2 in subjects with normal hearts. I
why obelia is considered to be of special interest in zoology ass an animal showing intermediate grade of organisation
Name the subcellular particle where the electron transport chain is located. Mitochondria is the subcellular particle where the electron transport chain is located.
If you have water, 10% sucrose, and 40% sucrose solution. Which solutions were isotonic to each other?
What are possible treatments available for a herniated disc injury?
Hypoglycaemia is defined as state of low blood glucose level of less than 50mg/dl. Low blood sugar level varies from person to person. Causes Since hypoglycaemia can occur in
When a ventricQlar septa1 defect (VSD) is present, with no aortic stenosis, the peak velocitgr across the defect reflects the difference in pressure between the right ventricle 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