Answer:
The stamen of a flower — the part that produces pollen — consists of a slender stalk, called a filament and an anther. The filament supports the anther, which is where pollen develops. The word filament is from the Latin word filum, which means "thread." Filament, in fact, can be a synonym for thread.
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.
How it was formed, like most rocks a e formed from volcanoes and some from sand
Answer:
Magnesium is in Group II and has two electrons in its valence shell. Thus it tends to lose two electrons. It wants to be a stable and it is easier for it to lose two electrons than gain 6.
Explanation:
Answer:
The correct answer would be allergies.
Allergies is one of the common disadvantages of recombinant DNA technology.
It has been observed that use of genetically modified crops can cause life-threatening allergies.
The possible reason is that the introduction of new genes in the crops may lead to the formation of new proteins our body has never encountered with. These proteins may have a potential to cause allergies or any other life-threatening diseases or complications.
