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!
What is Cytogenetics?
Before the advent of modern technology, the American biologists Thomas Hunt Morgan, G.W. Beadle, H. Sturtevant, Barbara McClintock, and others contributed greatly to our knowledge of genetics. They studied the microscopic appearance of chromosomes with respect to phenotypic traits, a discipline called cytogenetics.
Morgan chose to study the fruit fly, Drosophila, for several reasons: it has a short life cycle, it produces hundreds of offspring from a single mating, it can easily be raised in the laboratory, and it has only four pairs of chromosomes. The fruit fly is also well suited for cytogenetic studies because the salivary glands contain polytene chromosomes, in which the DNA has replicated many times without cytokinesis; as a result, the genes form condensed bands of different thicknesses called chromomeres that are visible at low magnification. The patterns of the bands, their thickness, spacing, and sharpness, can be used to determine if changes in chromosome structure has occurred.
PHYLUM PROTOZOA Definition and Introduction All unicellular ( or acellular ) eukaryotic animals. Most primitive (Gr. Protos = first=zoon= animals ) organisms
Q. What do you mean by Bleeding Index? This factor is applicable at this stage to evaluate the health of one stage implants in which the transmucosal component allows the forma
Cold Hardiness and Cold Acclimation In connection with cold response we would like to introduce two terms- cold hardiness and cold acclimation. Cold-hardiness ref
It is the process of separating colloidal and suspended impurities from water by passing it through a porous bed made of fine sand and other proper sized granular materials. Filtra
What is the importance of vitamin A The importance of vitamin A is undisputable. You may already be aware about the functions/role of vitamin A in our body. Vitamin A is absol
What is commensalism? Commensalism is the ecological interaction in which one individual advantage while the other is neither benefited nor harmed. Commensalism is a harmonious
F o wl pox Fowl pox is a contagious disease of birds, caused by a member of family Poxviridae, characterized by wart-like nodules on the skin and diphtheritic necrotic membra
Determine the types of Emulsions? A food emulsion is basically a two phase system consisting of a liquid, such as oil, wax or essential oil and water. An emulsion has 3 parts -
Ed e m a It refers to excessive accumulation of fluid in tissue spaces caused by disturbance in the fluid interchange between capillaries, tissue spaces and lymphatic vessel
Explain the Presumptive Test - Most Probable Number Test? The Presumptive test is used to detect and estimate coliform population of a water sample. This test is carried out by
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