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Why natural killer cells are granulocytes and T cells and B cells agranulocytes although both have common progenitors?
Please be patient with me. I've had to look this up. It appears that the blood cells differentiate from a common stem cell. They differentiate into two stem cells: 1. a myeloid stem cell. The myeloid stem cell matures into a CFU-GEMM progenitor cell which farther differentiates into five progenitors for eosinophils, basophils, neutrophils, monocyte, platelets, and red blood cells and 2. The lymphoid stem cell then differentiates into pro B and pro T cells and on to B lymphocytes and T lymphocytes. I believe it is the T lymphocyte which is known as the killer cell. There are many steps in this process and two of the cells also become tissue cells.
However, getting back to your original question; there is some process as cells differentiate, (become different cells), from a common stem cells that turns some genes on and other genes off. All cells have the same DNA within the same organism, but some genes or turned off in some cells.
What else can I help you with?
Is chiffon man made or natural fiber?
Chiffon is typically made from synthetic fibers like polyester or nylon, although it can also be made from natural fibers like silk.
Is natural gas transported through pipes?
Yes, although some can also be transported in liquid form using tankers and ships.
What are the natural resources of the Haiti?
There are several natural resources on the island of Haiti including bauxite, copper, gold, calcium carbonate, hydro power, Iridium and marble. Although there has been some speculation about potential oil discoveries. Haiti has no proven oil or natural gas resources.
Are coal oil and natural gases are renewable resources?
No. They will run out at some point. Although they were created by the bones and plants millions of years ago, we are slowly drilling and mining all of it.
What natural disasters affect only Florida?
Hurricanes are the most common natural disaster that affects only Florida due to its location in the Atlantic hurricane basin. Tornadoes are another natural disaster that can impact Florida as well, although they are less common than hurricanes. Flooding from heavy rainfall or storm surges can also occur in Florida, particularly during the wet season.
What type of white blood cells finctions in cellular immunity?
Leucocytes: phagocytes, natural killer cells, mastocyte. Phagocytes: granulocytes and monocytes (outside of the bloodstream: macrophages).
What are the antibodies of the innate immune system?
The innate immunes system does not produce any antibodies. Cells of the innate immune system are macrophages, granulocytes (neutrophils, basophils, eusinophils), natural killer cells...
Can natural be invisible?
Air is natural and it is invisible. Yes, it is possible for a natural substance to be invisible, although it rarely happens.
How is the title of the natural ironic?
The title of the book "The Natural", about a baseball player is ironic in that although he has a great deal of natural talent, he experienced several bad life events, demonstrating that although he appeared to "have it all", the reverse was actually true.
What do you call a person with purple hair?
Although we have words for natural hair we do not have words for those with un-natural colour.
What you called natural numbers with 0?
I would call them "natural numbers". The natural numbers are normally assumed to include zero; although that was not part of the original definition.
Is 9015 a natural number?
Yes Natural Numbers are often described as "counting numbers". You can certainly count to 9015 (although it will take you a while) so 9015 is a natural number.
Is zero an element of the set of natural numbers true or false?
False, although some mathematicians will disagree.False, although some mathematicians will disagree.False, although some mathematicians will disagree.False, although some mathematicians will disagree.
Does Lady Gaga have blonde hair?
Yes, although it may be dyed and not 'her' natural colour.
What do you think about gay sex?
opinion 1:It's perfectly natural and normal.opinion 2: I believe that it is natural, although, not normal. That is not to say that it is wrong by any means.
What natural resources is Florida known for?
Natural freshwater springs, although no one has yet found the fabled Fountain of Youth. Wildlife abounds in Florida's wetlands.
Is Whitney Houston A PopStar?
Yes. Although she died this year, her legacy will live on for her natural born talent.
