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.
Q. Explain about Bequest value of biodiversity? Sometimes people derive satisfaction from the fact that conserved biodiversity may benefit other individuals in the future, givi
1. This is very prolonged phase, and differs from the prophase of mitosis, because in this Chromosomes behave as homologous pairs. 2. Each diploid cell has two chromosomes of ea
How intracellular cytoplasmic calcium concentration is maintained? Intracellular cytoplasmic calcium concentration is maintained by the following mechanisms: a) Limited entr
Rehabilitation Phase for nutritional treatment - Neuro Trauma? Once the patient stabilizes and starts recovering, be sides nutritional replacement, there is a need to assess fu
Define the Concept of Health Care? We are aware of the fact that health is a fundamental human right. Thus, it becomes imperative for the State to assume responsibility for the
How do respiratory pigments act? Respiratory pigments are oxygen-carrying molecules present in the blood. When the oxygen concentration is high, for instance, in the pulmonary
Basic Planes of Cleavage The basic planes along which the egg and its daughter blastomeres are divided during early cleavage are: A. Meridional Plane - the cleavag
Agro Industrial-Baling and cubing Bailing is one of the most common processes used for the conservation of green fodders and grasses in many developed countries and attempts ha
Syngamy The pollen tube grows to a very limited extent in the synergid. It releases the contents either through a terminal or a subterminal pore. The contents include the two
Various acute complications of diabetes mellitus are described in this unit. Acute complications develop within a short period of time. These are due to improper treatment of diabe
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