Usually its the Hypothesis
Chromatin is within the nucleus and is found in BOTH eukarayotic and prokaryotic and is a condensed structure of DNA,proteins, and RNA. It basically protects the DNA sequence and structure. It allows for mitosis and meiosis to happen. The nuclelous is located inside the nucleus but ONLY in eukarayotic cells. It makes ribosomes.
somatic hypermutation occurs only in the <u>V or Variable</u> regions of rearranged heavy and light chains.
Somatic hypermutation occurs only in activated B cells, not T cells. This occurs in germinal establishments inside of lymph nodes and the spleen, where B cells are stimulated and T cells are present. Somatic hypermutation is a procedure in which point mutations pile up at rates 106-fold greater than the background mutation rates observed in other genes in the antibody V-regions of both the light and heavy chains.
Somatic hypermutation of immunoglobulin (Ig) genes is important in antibody-mediated immunity. SHM in B cells serves as the molecular foundation for antibody affinity maturation. In this way, SHM plays an important role in optimizing antibody-dependent immune responses.
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I believe it is called the stimulus. An example of a stimulus would be an explosion, and the a person's response would be scared or frightened.
The answer is; B
Mutations change the order of nucleotide and therefore affects codons that code for proteins. A different protein is thus produced from the wild type hence creating variations. Genetic shuffling in sexual reproduction, also called gene recombination occurs during meiosis and also when different organisms exchange genetic material such as in bacteria.
