Answer:
A 39
Explanation:
The sex chromosomes is always half of it original chromosome
Answer:
D. Minerals
Explanation:
The question is asking for which of these things could be part of a stream's <em>dissolved</em> load. Pebbles, cobbles, and sand grains can not dissolve, but minerals can.
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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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Answer:
What type of plants are extinct?
Explanation:
Prehistoric extinctions
Cooksonia.
Archaefructus.
Abies milleri.
Dillhoffia.
Trochodendron nastae.
Araucaria mirabilis.
Araucarioxylon arizonicum.
Sphenophyllum miravallis.
