Here is your notes on sericulture! It is the art and science of silkworm breeding for producing silks. The sericulture is an important cottage industry, but is now the basis of large industries in China, Japan, India and some European countries, where the silkworm, Bombyx mori is reared on mulberry leaves on a mass scale to get raw silk from [...]
Development of Foetal Membranes in Amphioxus and Frog ! In vertebrate embryonic development only form a part of the egg or of cleavage mass of cells forms the actual embryo, while other parts lying outside the embryonic territory develop into extra-embryonic regions, called embryonic or foetal membranes. Embryonic membranes are auxiliary organs, which have arisen partly for protection of the [...]
Kinds of Endoplasmic Reticulum: Agranular and Granular Endoplasmic Reticulum! The shape and size of the membrane-bounded ER spaces varies considerably from one cell type to another. Many cells, in fact, possess two distinct forms of ER which are in continuity with one another. On the basis of absence or presence of ribosomes, endoplasmic reticulum (ER) is of two kinds: [...]
