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Q. What are blood stem cells?
Stem cells are undifferentiated cells able to differentiate into other kinds of specialized cells.
The stem cells of the bone marrow originate the differentiated blood cells According to stimulus from specific growth factors the stem cells are turned into red blood cells, megakaryocytes and leukocytes (cells that form platelets). Research shows that stem cells of the bone marrow can also differentiate into muscle, hepatic cells and nervous.
The crude oil obtained from earth's crust is refined by following steps. Step 1: separation of water Cottrell's process is used for separation of water. Crude oil is an emu
How can amine groups be classified? Amines can be classify into primary amines, those to which one -R (variable radical) is attached to a -NH2, secondary amines, those where on
What is the Importance of pantothenic acid One of the active forms of pantothenic acid is coenzyme A, which is involved in numerous metabolic functions. It is involved in t
Define about the Food Production? We know that agriculture comprises the major source of food production. This is very true in a country like ours where the majority of the pop
Sporozoans – Protozoan Sporozoans of the genus Plasmodium are responsible for causing a serious human disease, malaria. They are among, the best known parasites which live in
What is meant by concentration gradient? Is it correct to refer to "concentration gradient of water"? Concentration gradient is the difference of concentration of a substance
Prior to the solving of the structure of DNA, Erwin Chargaff calculated the amounts of the four nucleotides (A, T,G,C) and made which of the following conclusions? A. All four
Define about the nutritional deficiencies? The nutritional deficiencies which have been identified in the group of elderly are of total calories, protein, vitamin A, vitamin C,
Explain which is better to grow plants in Rock sand or soil? Ans) When we grew plants inside, with no wind, and the plants in the rocks grew superior to the plants that were gr
An A=T mispairing leads to an A=C substitution. The other DNA helix will contain a(n) __ pair. a. A=C b. A=T c. G=C d. B=Q e. T=T Can you also explain it please so if I'm ask
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