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Q What are the bacteriophages?
Bacteriophages are viruses specialized in parasitism of bacteria. They are used in genetic engineering as molecular cloning vehicles to include recombinant DNA into bacteria they were also used in the former Soviet Union to treat bacterial infections.
Bacteriophages have a polyhedron-like capsid and DNA as genetic material, the "head" of the virus is connected to a tail that ends in small fibers that help the virus to attach to the bacterial cell wall and to inject its genetic material into the host.
Which photosystem-I or II-most likely evolved first? Describe your reasoning. Photosystem II most likely evolved first, because it changes electrons lost from chlorophyll
Q What are the major ecological roles of bacteria? Bacteria are responsible for the decomposition process at the end of food webs and chains in this process they also liberate
how to make a membrane protein which in ER transfer to PM. whether can cut some amino of sequence which play as signal guide the protein to where could the problem
What is the generic function of leukocytes? What are leukocytosis and leukopenia? The generic function of leukocytes is to contribute in the defense of the body against strange
An adequate level of pressure is needed in the arteries to keep the blood flowing through the cardiovascular system. The chief determinant of arterial pressure is the volume of blo
Define Regents for Estimation of Vitamin C - Colorimetric Method? 1. 2, 4 dinitrophenylhydrazine reagent - Dissolve 2 g of dinitrophenyl hydrazine in 100 ml of 9N sulphuric aci
Salmonellosis in poultry A wide variety of serovars are prevalent among chicken, turkeys, ducks and geese. The poultry is an important reservoir of salmonellae. The common dise
Name some emulsifiers which are present in nature? There are many emulsifiers which are present in nature such as phospholipids e.g. lectin which is present in egg yolk which a
Q. What is an open circulatory system? Open circulatory system is the one in which blood doesn't circulate only inside blood vessels but it also falls in cavities that irrigate
Morphological Changes - Floral Induction Some of the morphological changes that accompany floral induction are: Change in the shape of meristem, Increase in the ra
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