Answer:
Explanation:
we have three strains.
the first is the wild type which has tryptophan mRNA which gets degraded rapidly and tryptophan synthase which is stable. therefore, in the presence of tryptophan, no new mRNA is formed and whatever tryptophan synthase was present would be diluted out as cells continue to divide.
Strain A has stable mRNA and stable tryptophan synthase. so since the mRNA is present, new enzyme will continue to form from it. However, since no new mRNA is formed, the enzyme activity will get diluted as cells divide, but at a much slower rate than the wild type.
in Strain B , synthase is rapidly degraded and no new mRNA is formed. so the tryptophan synthase activity would decrease drastically.
Answer:
D. The nerves exit the central nervous system in the head and from the lumbar spine.
Explanation:
The preganglionic neurons transmit the nerve impulses through the cranial or spinal nerves that arise from the brain, to the postganglionic neurons from where the nerve fibers that relay these nerve signals to the different viscera and effector organs, located along the spinal cord
Frogs<span> are at the bottom of the food chain; they need a lot of offspring in order to offset how many are being eaten everyday. Basically, </span>gametes<span> are sex cells. ... So to increase the chances of fertilization </span>frog produce large<span> no. Of </span>gametes<span> and basically sprays them over eggs released by female.</span>
Answer:
If blood glucose is high insulin is low
Explanation:
Answer:
Redox reaction
Explanation:
Redox reaction involves both reduction and oxidation of substances. The lithium atom is reduced as it loses the electron while chlorine is oxidised as it gains an electron. An equilibrium state is obtained and lithium chloride is formed.
