Answer:
The correct option is B. Electrogenic pumps creates a voltage difference across the membrane.
Explanation:
Electrogenic pumps are used to travel molecules in and out of a cell by establishing a concentration gradient. Hence, the statement that best describes the property of electrogenic pumps is B.
Other options, like option A is correct but it does not describe the general property of the electrogenic pump.Option C is incorrect because not a large variety of solutes can pass through the membrane.
Answer:
The correct answer is "cells which form white colonies on the ampicillin plates".
Explanation:
X-gal staining, also known as blue–white screen, is a common approach to detect colonies that express the gene of interest that has been incorporated into its genome. The basis of this technique is introducing the gene of interest into a vector that interrupts the expression of beta-galactosidase, which means that in a medium with X-gal the cells that were successfully transformed will be white. In this case, the cells that are transformed will also be resistant to ampicillin. Therefore if they growth in a media with both ampicillin and X-gal, a successful clone will form white colonies.
<span>The Krebs cycle uses acetyl CoA as a reactant.</span>
Answer:
Accepted.
Explanation:
As mentioned in the question that a new theory is agreed upon by a vast majority of scientists worldwide. Theory can simply be considered as a set accepted propositions or facts that try to provide an explanation of causes behind a certain phenomenon.
In this case, if vast majority of the scientists believe a particular theory, it is likely to be accepted and can lead to formulation of a scientific law in future.
For example: Mendel's theory of segregation and independent assortment were presented but many scientists did not believe it in start, it took a long time for scientists to accept the theory and ultimately when it was transformed into scientific theory.
Hope it helps!