The exons of the pre -mRNA contain the protein -coding regions.
Pre mRNA is the first made mRNA transcript and requires undergo many post transcriptional modifications for the formation of a mature mRNA.
The exons are the regions of the pre-mRNA that are found in the mature RNA, after the splicing of introns takes place.
RNA splicing is the process in which the non-coding segments of the RNA, which are known as introns, are removed by the help of small nuclear ribonucleoproteins. These SnRNPs make the spliceosome, which catalyzes the process of splicing.
After the introns are removed by the splicing process, the exons are covalently joined, which forms the mature mRNA.
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Most populations changed from mostly light colored to mostly dark colored in the 1800s. This relates to microevolution.
In plants carbon dioxide is reduced into simple carbohydrates (e.g. glucose) with energy absorbed from the sun within the chloroplast.
This is also known as photosynthesis.
Hope this helps!
Answer:
The answer is C
Explanation:
For answer A, only aerobic respiration can form sugar, photosynthesis forms ATP. Answer B, only photosynthesis takes up carbon dioxide, aerobic respiration takes up oxygen. Answer D, oxygen is a reactant only during aerobic respiration. Answer E, oxygen is only one of the product of photosynthesis, not aerobic respiration❤️
Hope this will help~Have a good day
Blood protein levels fall and fluid shifts to the tissues
