The travel to the galciers is something one can never forget. The aura of the place along with the beauty that one gets to notice is so enriching to entice one to stay there forever. The glaciers are one of the many natural wonders our world has to offer. Formed because of the accumulation of the snow year after year, these glaciers are present in many sizes. Besides, the movement of the glaciers, such as the glacial erosion and deposition leads to the formation of many other attractive features, such as the corries, pyramidal peaks, truncated spurs, and hanging valleys. You must definitely visit these places to give your soul this exciting experience.
<span>There are 2 parts to the answer:
1. DNA is very long. It is simply not efficient to translate proteins directly from DNA. We need a messenger to copy the information from the DNA in much more compact, manageable and short molecule, thus mRNA copies the code for a specific protein off the DNA, is exported from the nucleus and is then used as a template to create the protein.
2. Regulation. Having mRNA as an intermediate stage between the coding and the translation of the information into protein, enables fantastic and advanced control.
a. It allows the sequestering of DNA into the nucleus. A tremendous advantage for regulation.
b. It allows regulation on the transcriptional level by transcription factors - when and how much we end up with any specific protein.
c. It enables alternative splicing - again another level of control, and adds options for diversity,
These reasons are why RNA is necessary.</span><span>
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Native shellfish populations have dramatically decreased as they are outcompeted by the crabs, causing a decrease in biodiversity.
The first and the fourth test tube exhibit a redish/brown color and the second and third test tubes show a dark blue/black color.
This variation exists due to the fact that amylase was added to the first and fourth test tubes. Amylase acts upon starch and breaks it down to simpler molecules. Therefore, when the IKI solution is added to check for the presence of starch, a negative result is shown. Meanwhile, the starch in the second and third test tubes remained and the IKI test showed a positive result for the presence of starch.