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!
Haploid Production
The higher plants are normally diploid, with two sets of chromosomes in their somatic cells. Their haploids (with one set of chromosomes) arise in nature by parthenogenesis due to malfunction in the normal sexual process. However, such events are extremely rare and unpredictable. In 1964, two Indian scientists, Guha and Maheswari, observed that in cultured anthers of Datura innoxia some of the microspores, instead of following the normal gametophytic mode of development, formed sporophytes (Androgenic plants).
As expected, those sporophytes were haploid. This report caused much excitement because of the considerable importance of haploids in genetics and plant breeding. To-date androgenic haploids of over 200 species, including many major crop plants (Cereals, Brassica spp, tomato and potato), have been raised through anther and/or isolated pollen culture.
Describe a. the factors responsible for promoting lactation, and b. the mechanism responsible for the cessation of lactation when a mother weans her baby.
Causes of Degradation of Ecosystem Due to Agriculture Degradation of the ecosystem due to agriculture can be on the following accounts: a) Removal of trees (deforestation
Q. Understanding Behaviour of diabetic patients? Beliefs Each of us has a set of beliefs that were learned by us when we were young. These include religious beliefs and
characters of phylum protozoa
FAT METABOLISM Animals digest and utilize three main types of fatty compounds or lipids neutral or true fats ( triglycerides ), phospholipids and sterols. Endproducts
What is the difference between the alpha helix and the beta-sheet protein conformations? Ans) Alpha helix and beta-sheet conformations are the two major types of secondary struc
What is Motor Neuropathy It leads to muscular weakness and wasting. Muscle wasting leads to various foot deformities and abnormal pressure points develop due to loss of even p
Define Food Sources of Calcium? Dairy products are of course the primary source of calcium followed by grains and pulses. Among the millets, ragi contains substantial amount of
Air Pollution - Environmental Pollution The threat due to air pollution became apparent only when some severe episodes caused human casualty in USA, Britain (London) and Japan
Where are the adrenal glands located? How many are they and what are their portions? Each adrenal gland is located on the top of every kidney (forming a hat-like structure for
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