Hello
The percussion cap is placed over a hollow metal hole at the rear end of the gun barrel. it can be made of copper and brass
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Answer:
The correct answers are option A. "Mutating histidine residue 274 of the citrate synthase enzyme to an alanine amino acid would likely eliminate or reduce the enzymatic activity of citrate synthase", B. "The histidine residue would hydrogen bond to acetyl-CoA throughout the reaction mechanism, stabilizing the enolate intermediate", and D. "Oxaloacetate would be repulsed from aspartic acid in the first step of the reaction mechanism".
Explanation:
Citrate cycle is comprised of a series of reactions used in aerobic organisms to release energy from different chemical species. In this cycle, the citrate synthase enzyme catalyzes the first reaction which is the formation of citrate by the condensation of acetyl-CoA and oxaloacetate. The enzymatic activity depends on the histidine residue 274, which acts as proton donor to the carbonyl oxygen of acetyl CoA stabilizing the enolate intermediate of citrate. Therefore, a mutating histidine residue 274 of the citrate synthase enzyme to an alanine amino acid would likely eliminate or reduce the enzymatic activity of citrate synthase, also oxaloacetate would be repulsed from aspartic acid in the first step of the reaction mechanism as a result of this modification.
<span> If you were to develop the drug, you would want it to only stop replication in the virus and NOT in the human. Therefore, you want to only block the steps that are unique to the virus. Don't know if that helps, but it's a start.</span>
Hox genes are: Hoxd9,10,11,12 and 13. Hox genes are responsible for limb bud formation. Hoxd9 influences thumb, Hoxd9 and 10 index fingers and so on.
Hoxd10 has ectopic effect on the development of the mouse limb bud index finger. As a consequence index finger in formed in place of thumb.
