Answer:
Negative regulation
Explanation:
In the trp operon, tryptophan binds to the repressor protein, then this complex binds to operator effectively blocking gene transcription preventing the production of enzymes that aids in the synthesis of tryptophan. This happens when high levels of tryptophan is detected. This, it is a repressible/negative type of regulation.
Answer:
The generation of nitric oxide is done by almost every kind of cell present in the human body, it is one of the essential constituents that plays an important function in maintaining proper health of blood vessels. The nitric oxide acts as a vasodilator, that is, it relaxes the blood vessels' inner muscles, thus making the blood vessels to broaden.
Therefore it can be concluded that nitric oxide enhances the flow of blood and thus reduces the blood pressure. In this manner, nitric oxide helps in tackling the symptoms of conditions like angina.
At the molecular level. the activation of guanylyl cyclase is done by nitric oxide, which further catalyzes the production of cGMP. This cGMP further functions as an intracellular messenger in a pathway that results in the relaxation of the smooth muscles.
Grant will refuse to go until hammond either threats him with something or forces him to go or he promises something grant will like to be there
TRANSPORT IN PLANTS?
What about transport in plants, how does
a Redwood, one of the tallest trees in the world, move water from the
soil to the needles on its tallest branches over 300 ft in the air?
(That’s over 30 stories high!) Or how does a carrot transport the
sugars made in its green, leafy tops below the surface of the soil to
grow a sweet, orange taproot? Well, certain types of plants (vascular plants)
have a system for transporting water, minerals, and nutrients (food!)
throughout their bodies; it’s called the vascular system. Think of it as
the plant’s plumbing, which is made up of cells that are stacked on top
of one another to form long tubes from the tip of the root to the top
of the plant. To learn more about it, let’s study the stem.
<span>The
answer is a fecal occult blood test (FOBT) that checks for hidden (occult)
blood in the stool (feces) by use of a microscope. The major disadvantage is that it is not very
accurate because it is not a 100% reliable as an indicator of colorectal
cancer. Sigmoidoscopy is often undertaken following a positive FOBT</span>
