Answer:
interleukin-2 (IL-2) is an interleukin, a type of cytokine signaling molecule in the immune system. It is a 15.5–16 kDa protein[5] that regulates the activities of white blood cells (leukocytes, often lymphocytes) that are responsible for immunity. IL-2 is part of the body's natural response to microbial infection, and in discriminating between foreign ("non-self") and "self". IL-2 mediates its effects by binding to IL-2 receptors, which are expressed by lymphocytes. The major sources of IL-2 are activated CD4+ T cells and activated CD8+ T cells
Explanation:
If p = frequency of A and q = frequency of a, then assuming H-W equilibrium we have
p + q = 1 ⇒ q = 1 - p = 1 - 0.55 = 0.45
Then the expected frequency of the heterozygous genotype Aa is 2pq = 2 • 0.55 • 0.45 = 0.495.
The four muscles of the rotator cuff are the supraspinatus, infraspinatua, teres, and subcapularis. Hope this helps!
Function of
centrioles
An organelle that forms a
spindle-shaped structure of protein fibers on which the chromosomes move during
nuclear division are called the centrioles. Centrioles are part of the animal
cell organelles. Hence, they are a small part of the microtubules organized and
set in a particular course. Microtubules include 9 sets. Centrioles contain a
cylindrical structure, packed with protein which is described as tubulin. Found
mostly in eukaryotic cells beside the nucleus.
