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.
Comparing toxicity and the requirement for dilution in water how different are the ureotelic and the uricotelic excretions? What are some examples of animals that present these res
Define Limitations for underwater weighing method? This method is expensive, time consuming and usually requires a lot of equipment and space. The subject needs to be
In rats, the gene pigment (P) is dominant to no pigment (p). The gene for black (B) is dominant to the gene for cream (b). If a pigment gene (P) is absent, genes B and b are inoper
Nitrogen is needed mostly for the synthesis of amino acids and nucleotides. Sources of nitrogen can be obtain from organic as well as inorganic sources, but the whole target is the
Q. Describe the Morphological Characteristics? One of the first steps in the identification of bacteria in food is microscopic examination to ascertain the shape, size, aggreg
Determine the prevention of Cholera Prevention: Following recommendations are there to prevent cholera outbreak: Drink only water that you have boiled or treated with
The environmental pollution has become a biggest threat to humanity. To over-come this problem a suitable preventive legislation is need of hour. The problems of acid rain ,ozone
Define Advantage & disadvantage of using fungi as source of protein? Advantages 1. Easy to harvest from culture medium. 2. Texture of the fungi improves the functional
Fever influenza
Explain about the Brownian ratchets and molecular motors ? How work is carried out by molecules within biological cells is essential to understanding how cells function. A clue
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