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. What are the factors Affecting Taste Quality? You may have experienced that the four primary tastes i.e., sweet, sour, salty and bitter are not sensed with an equal ease. Th
A study is made to verify the effects of pesticide exposure on pupal weight of butterflies. In a pilot study, 5 randomly selected larvae are raised on plants exposed to the pestici
SUPERNUMERARY OR ACCESSORY CHROMOSOMES Wilson (1905) discovered them in Matapodium insect. Very small Chromosomes present in nucleus in addition to normal number of Chr
What are the disadvantages of protozoa
Explain the term Kwashiorkor? The term Kwashiorkor means the 'disease the first child gets when the second baby is born', that is, 'the sickness of the deposed child'. Thus, th
Use of micro-organisms to control insect pests, pathogens or weeds constitutes biological control, and the biological agents employed are called biocontrol agents. Micro-organis
Define Altered Fat Metabolism - Nutrition during Stress? Fat is the major fuel oxidized in infected patients. If nutrition support is inadequate, the peripheral fat stores are
Explain Potassium Potassium (K): Potassium restricted diets are important for patients with advanced renal failure undergoing conservative treatment or haemodialysis. Th
Explain the Dietary Management of a lactating mother? Meeting the needs of lactation requires a varied nutrient-dense diet. Generally, a well-balanced diet will meet nutrient n
(a) What are the immediate effects of exercise on the functions of (i) the heart, (ii) the lungs, (iii) the liver? (b) How do these changes help to meet the needs of exercise
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