<span>(B) Coal formed from the remains of dead plants, limestone is composed of millions of calcite skeletons of microscopic marine creatures.</span>
The operon is effectively the center of transcriptional control. In addition to its main structural genes, the operon houses an operator and a promoter. In front of the promoter lies a regulatory gene that produces repressor proteins. When a repressor is in its active state, it binds to the operator.
Hope this helped.
Answer:
option E the coupling of an exergonic reaction to an endergonic reaction
Explanation:
ATP production is an example of energy coupling where energy that is derived from one system is used to drive the reaction of a second system. energy released by ATP hydrolysis (an exergonic reaction) is usually used to drive cellular functions; coupling with endergonic reactions (reactions that absorbs heat from the environment). Sodium potassium pump uses this energy derived from ATP hydrolysis to pump sodium and potassium across the membrane.
5 g/mL, density is mass divided by volume.
Answer:
An organism would not be able to reproduce without meiosis.
Explanation:
Between meiosis and mitosis, meiosis is by far not as important. If you are a asexual organism, this would be NOT IMPORTANT whatsoever. If you are a sexual organism, this would LARGLY effect you. But on a world scale, this is NOT AS IMPORTANT.
This is because, without mitosis, you could not heal and would die much much younger since your cells could not be replaced. On the other hand, without meiosis, any organism that reproduces sexually would be unable to do so, which could lead to extinction in many, many species. This would not be harmful, however, to species that can also or mainly reporuduce asexually through budding, fragmenting, or sporing. So overall:
<u>Organisms that produce sexually would go extinct. </u>
This is the only real affect I can think of. Since meiosis does not produce any cells aside from reproductive cells. And asexual organisms produce reproductive cells through other means.
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