Answer:
yes Sam now knows why it is important to use proper technique
Explanation:
you got this
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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Answer:
5 bottles of pop and 1,000,000,000 candy bars
Explanation:
Answer:
The immune system is weakened.
Explanation:
Cortisol is the steroid hormone released by the adrenal gland of the kidney. This hormone is included in the class of glucocorticoid and released in the stress situation.
The cortisol regulates the blood glucose level and suppress the immune system during the stress condition. The prolonged secretion of cortisol suppress the immune system of the body for long time. This will effect the weaken system and makes its weak permanently.
Thus, the correct answer is option (B).
