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.
Define Dietary habits factor for obesity? You are aware that a positive energy balance is one of the major contributory factors for obesity. Some people are in the habit of eat
Adaptations Every organism can live and reproduce within a certain range of climatic conditions. Organisms that live in hot or cold environments have behavioural and physiologi
Trace the flow of blood through the systemic circuit (hepatic portal system) and the pulmonary circuit, beginning and ending in the left ventricle. You will be using named chamber
Explain briefly why 'greenhouse' gases lead to global warming. The greenhouse gases do not interfere with the short-wave radiation reaching the Earth from the sun but take up t
Inhibitor Proteins - Enzyme-activity Control One kind of inhibitor protein found in higher plants is an endopeptidase which degrades nitrate reductase thus causing irreversibl
Maintenance and Regulation of Peripheral Circulation Pressure receptors (baroreceptors) located in the wall of the internal carotid arteries and in the arch of aorta, when
Q. Describe Induced Ventricular Arrhythmias? The prognostic significance of ventricular ectopy provoked by stress testing after an MI is controversial. Complex ventricular arrh
Explain the basic Concept of Energy? Energy in simple terms may be defined as the ability, or power, to do work. As a student of dietetics and nutrition, you already know that
Light Requirement - Seed Dormancy The light requirement for germination of many seeds is presumably a mechanism that prevents the germination of small seeds buried deep underg
Q. Which are the kinds of neurons that participate in the spinal arch reflex? Where are their cell bodies situated? In the arch reflex first a sensory neuron located in the gan
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