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.
What is diffusion? Diffusion is the spreading of substance molecules from a region where the substance is more concentrated to another region where it is less concentrated. For
The standard free energy change and standard activation energy for four biochemical reactions are listed in the table below: A few interpretations are given below. Between thes
Embrylogical Devlopment of Hypospadias The development of the penis and scrotum is intluenced by the testes. In the absence of the testes, the female structures of the
Eutrophication - Effect on Water Bodies Moderate quantities of sewage decay naturally in a water body and water gets purified after some time. But the problem arises when the
briefly explain the following feeding mechanisms in holozoic animals a) filter feeding b) fluid feeding c)deposit feeding
BLOO D PRESSURE Is the result of the sum of (i) Osmotic colloidal pressure of blood (ii) Elastic recoil of blood vessel's wall.
Energy Cycle of Living Being Source of energy :All matter locks energy in the from of bonds between component molecules and atoms. This energy is the chemical ener
How could humans be disadvantaged by the extinction of a plant species? The loss of a plant species may deprive humans of any beneficial substances (e.g. drugs) that the specie
Q. What do you meant by Diabetic Ketoacidosis? Diabetic Ketoacidosis (DKA) is one of the acute complications of diabetes mellitus. The name itself implies that there is acidosi
Effect of Environmental Factors some lower organisms, though the genetic determiners of the sexes are present, the ambient environment plays a decisive role in the development
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