Answer:
it would be ideal to split the test into 4 different groups
Explanation:
To better test the effects of the drug at different doses, it is important to consider the standard of the scientific method in testing.
Control testing is important in the first group of patients to take no drugs, in the second group of patients taking a placebo, in the third group of patients taking a 300 mg dose of the drug, and finally in the fourth group one dose of 500 mg. This wide range of doses and placebos not only shows better data, but creates a basis for better comparison of the final results.
a. A translation stop codon is added at the 3' end of the pre-mRNA.
c. A poly-A tail (50-250 adenine nucleotides) is added to the 3' end of the pre-mRNA.
d. Coding sequences called exons are spliced out by ribosomes.
Explanation:
In eukaryotes, during protein synthesis, the RNA must exit nucleus through the pores on the nuclear membrane and enter into the cytoplasm to undergo translation.
The exit processes of mRNA are: the 5’ capping, 3’ Poly-A tail, and pre-mRNA splicing.
The 5’capping is the initial step with addition of 7-methylguanosine cap to the 5’ end of the mRNA by phosphate linkage. This process protects the mRNA from degrading and helps to initiate translation processes.
The 3’ Poly-A tail step is the cleaving of pre-mRNA and addition of addition of around 200 A nucleotides or the 3’poly (A) tail to the mRNA by the poly (A) polymerase enzyme protein complex. This prevents pre-mRNA degradation, facilitates movement of mRNA to the cytoplasm, and initiates translation.
Pre-mRNA splicing is done to remove the introns from the mRNA because they are not part of function protein coding. The exons which take part in protein coding sequence are spliced once the introns are excised.
Finally, the resultant mRNA will exit the nucleus and enter the cytoplasm to undergo translation
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Cleaning agents should be used when trying to prevent infection and when complying to regulations. that is if they are medical cleaning agents. but household cleaning agents also are used to clean and disinfect objects such as infant toys, clothes, food utensils and cutlery, floors and tiles, glass, etc.
examples of cleaning agents are alcohol, dish soap or laundry detergent, and bleach, and hydrogen peroxide.
-hope this helps
Your answer is A
Offering your friends something unhealthy or unsafe is considered peer pressure
