The answer is A gene manipulation. You are manipulating a gene in the cotton plant to make it no poisonous
Answer:
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Explanation:
1. As given, cell cycle is of 8.30 hours.
G1 phase= 4 hours;
S phase= 2 hours;
G2 phase = 2 hours;
M phase= 30 minutes.
2. Adding up each phase shows that the cell cycle is 8.5 hours long. As after 9 hours, the radio labeled cells would have passed through a full cycle ( from G-1 to m phase) and be in either S phase or G2- phase and none cell would have entered M Phase.
3. DNA synthesis occurs only in S-phase, so the incorporation of any radioactive nucleotide happens in S-phase only.
4. M phase, cell divide itself into two daughter cells.
Answer:
A. Under these conditions the bacteria found in a hypertonic medium outside the bacteria is a concentrated salt solution. As can be seen in the scheme, there is a movement of sales from the exterior to the interior of the cell and water from the interior of the cell to the outside. This situation will kill many cells by plasmolysis
B.Other bacteria can survive thanks to the cellular movement through their semipermeable membranes through osmosis and the diffusion facilitated there is an exchange between the external and internal environment achieving a balance.
C. All bacteria would die because the equilibrium mechanisms could no longer be carried out
The earth is tilted. When the earth rotates around the sun, one side of the pole is always in darkness while the other side is in complete sunlight. For instance, when the earth is tilted toward the sun(60 degrees north for example), the northern hemisphere is experiencing the season Summer(poles have a long period of complete sunlight) whereas the southern hemisphere is experiencing Winter.