Options are not provided in the question. The complete question is as following:
The role that p53 protein plays in suppressing inappropriate progression through the cell cycle depends on all of the following EXCEPT _______.
A) p53 indirectly blocks G1 to S transition in the cell cycle
B) p53 activates transcription of WAF1
C) p53 stability increases in the presence of unrepaired DNA lesions
D) the ability of p53 to bind DNA lesions
Answer: D) the ability of p53 to bind DNA lesions
Explanation:
The activities of the protein p53 are dependent on its binding DNA. Specific post-translational modifications to the p53 protein are important for efficient sequence-specific binding and transcription activities. Non-sequence-specific DNA binding can involve a broad range of p53 proteins and predominate as more serious DNA damage or greater induction of p53 protein. P53 Protein is not strictly essential for sensing and repairing DNA damage. Alternatively, p53 protein can control an apoptosis checkpoint by competing with DNA repair proteins for non-sequence-specific binding in the DNA duplex to exposed single-stranded regions.
Hence, while suppresing inappropriate progression through the cell cycle protein p53 does not bind to DNA lesions.
Hence, the correct option is D.
Cellular Resperation = C6H12O6 + 6O2 → 6CO2 + 6H2O.
Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O
Ozone layer depletion is not a major cause of climate change. Global warming will be more significant contributor of climate change on earth.
<h3>What is ozone layer depletion and global warming?</h3>
Ozone layer depletion is the thinning of the ozone layer present in the upper atmosphere. This happens when ozone molecules interact with atmospheric chlorine and bromine atoms and break down. One chlorine molecule is capable of destroying one ozone molecule. It is not produced as quickly as it is destroyed.
The phenomenon of rising average air temperatures close to the surface of the Earth over the previous one to two centuries is known as global warming. This change has disturbed the climatic pattern of the earth. The burning of fossil fuels, logging of forests, and raising of livestock all have a rising impact on the climate and temperature of the planet. This increases the greenhouse effect and causes global warming by adding a significant amount of greenhouse gases to those that are already present in the atmosphere.
Ozone layer depletion is more acceptable than global warming because global warming is more responsible for the climate change in the earth, it traps huge amount of gases which rise the earth's temperature. Climate change may not primarily be caused by the ozone hole. Although a larger ozone hole does not contribute to global warming, the presence of ozone, a greenhouse gas, has a warming impact. The ozone hole itself has a minor cooling effect (about 2 % of the warming effect of greenhouses gases) because ozone in the stratosphere absorbs heat radiated to space by gases in a lower layer of Earth’s atmosphere. A small amount of heat can escape from that area into space as a result of the loss of ozone.
Learn more about ozone layer and global warming here:
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Explanation:
Moist Air Is Heavier As Moist Air Has Water Content In It.
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