Can antibody diversity in humans be explained solely by V(D)J recombination? Why or why not?Several proteins must work in a coordinating fashion to achieve V(D)J recombination. Which is responsible for adding nontemplated nucleotides to the V-D and D-J joints of Ig heavy chains?Recognition spacer sequences are separated by how many base pairs?If a given B cell is found to be potentially reactive to self-antigens, can the cell make an effort to correct that flaw, or is it destined for eventual removal by apoptosis?

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

Why is it important that fibrin is insoluble in water?

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?