It is often useful for scientists to study a population of cells that are all at the same stage of the cell cycle.
<h3>Why the discovery of cyclins and cdks was enabled?</h3>
The discovery of cyclins and cdks was enabled by studying frog eggs that divided synchronously after fertilization; extracts from the embryos were thus representative of the cell-cycle stage at which the extract was made.
Researchers have devised means to synchronize asynchronous populations of cultured cells. for example, serum starvation deprives cells of mitogens and blocks cells in the g0/g1 phase of the cell cycle.
Therefore, It is often useful for scientists to study a population of cells that are all at the same stage of the cell cycle.
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Answer:
Animal behaviour is controlled by the physiological mechanism
Explanation:
There are the known species of fish which communicate with each other through electrical signals or in the form of the electric field. This is known as the electrocommunication and the electroreception.
The communication between two fishes through the electric field is controlled by the physiological mechanism present in the fish and shows that the fish behaviour is controlled by the physiological mechanisms of the fish.
Thus, Animal behaviour is controlled by the physiological mechanism is correct.
Volume of milk that a glass can hold = 230 cubic cm
It is already given that
1 gallon of milk = 3.79 liters
W already know
1 liter = 1000 cubic cm
Then
3.79 liters = 1000 * 3.79 cubic cm
= 3790 cubic cm
Now
Number of glasses needed to contain 230 cm^3 of milk = 1
So
<span>Number of glasses needed to contain 3790 cm^3 of milk = 3790/230
</span> = 16.48
From the above deduction, we can conclude that 17 glasses of milk are required to hold 1 gallon of milk.
Isn't that where you turn the DNA into RNA?
The cell theory is the idea that the basic unit of life is cells.
