Answer:
In eukaryotes, it is well known that polyadenylation is required to produce the mature messenger RNA (mRNA) molecule and it provides stability to the mRNA during translation initiation. In prokaryotic organisms, polyadenylation is required for the degradation of the mRNA in a mechanism that involves three steps: endonucleolytic cleavage, polyadenylation and exonucleolytic degradation. Moreover, it is also important to note that no evidence of polyadenylation has bee reported in some prokaryotes including the halophilic bacteria Haloferax volcanic (Slomovic et al. 2005).
Citation:
Slomovic, S., Laufer, D., Geiger, D., & Schuster, G. (2005). Polyadenylation and degradation of human mitochondrial RNA: the prokaryotic past leaves its mark. Molecular and cellular biology, 25(15), 6427-6435.
C because our bodys are mixing chemicals
The nitrogen is captured and converted into a form that is usable by plants in a process called
<span>nitrogen fixation</span>
According to the climate change, the correct order is :
<span>1 - Sources emit greenhouse <span>gases.
</span></span>CO₂ makes up the vast majority of greenhouse gas emissions from the sector, but smaller amounts of CH₄ and nitrous oxide N₂O are also <span>emitted
</span><span>
2- </span>Global temperatures rise.
Temperatures measured on land and at sea for more than a century show that Earth's globally averaged surface temperature is rising<span>.
</span><span>
3- </span>Snow and ice melt.
If the surface temperatures warm above 32°, the snow and ice touching the surface will warm and begin to melt<span>.
</span><span>
4- </span>Sea levels rise.
When sea levels rise<span> rapidly, as they have been doing, even a small increase can have devastating effects on coastal habitats.</span>
The answer is Tyrosine. Conditionally essential amino acids is when non essentials amino acid becomes essential. In Phenylketonuria Tyrosine becomes a conditionally essential amino acid that must be provided in the diet. Phenylalanine accumulates and fails to convert to tyrosine during this condition.
