Answer:
B. The amount of unbound cyclin E is lowest as the cell enters S.
Explanation:
The reproduction of the cell is a cycle that it regulates by itself, depending the demand of a certain cell.
In the case of the mitosis, in Each change from G1 to S to G2 to M is regulated by some proteins like the cyclin.
In the case of the cdK2 is ncessary to pass the control point to pass from the stage G1 to the stage S.
Another characteristic of the cyclins, is that these proteins are synthetized and degraded constantly during the hole process.
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Increased population size will result in the extinction of a species of organisms.
<h3>What is Extinction?</h3>
This is defined as the dying out or disappearance of species as a result of various factors.
When population size increases, it leads to unavailability of food and reduction of species due to starvation and death.
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Answer:
Explanation:
There are different types of dissection microscopes. Most of the cheaper versions are just binocular, with two eye pieces. Some of the other high grade versions have a top trinocular port for attaching camera and video equipment. The cheaper ones also have fixed magnification, while the more expensive ones have a zoom feature allowing continuously variable magnification over the complete zoom range. Different zoom objectives give different ranges of zoom, with the higher ranges costing more.
A stereo microscope has a useful magnification up to 100×. The resolution is maximally in the order of an average 10× objective in a compound microscope, and often much lower.