The adaptor molecule linking the genetic code in nucleotides to the amino acid s

Question

The adaptor molecule linking the genetic code in nucleotides to the amino acid sequence of a polypeptide is mRNA rRNA 5S RNA tRNA DNA footprinting uses reverse transcriptase to credit a DNA print of an mRNA uses radioactive RNA to identify the complementary DNA sequence identifies which regions of DNA actually code for proteins can be used to identify promoter regions of genes The action of protein kinases in the cell is often described as a form of "molecular switch." Which of the following is the most accurate description of the functions of protein kinases acting as molecular Switches? Protein activity converts ATP to Camp, which then phosphorylates target proteins to activate or deactivate them. Protein kinase activity induces unfolding of protein tertiary structure to inactivate target proteins. Protein kinase activity changes in target protein tertiary and or quaternary conformations to either activate or inactivate the target protein. Protein kinase activity activates G proteins, which then bind to target proteins to activate or inactive them. Smooth ER is responsible for all of these functions EXCEPT drug detoxification steroid synthesis protein synthesis hydrocylation reactions The complete folding of polypeptides into proteins can be attributed to which of the following? hydrogen bonds. electrostatic interactions hydrophobic effects All of the other answer choice identify forces that can affect the folding pattern of proteins. Of the following steps associated with translation, which does not involve hydrolysis of GTP? aminoacylation of tRNA formation of the initiation complex binding of the aminoacyl tRNA to the codon at the A site translocation of the ribosome release of polypeptide

Explanation / Answer

95) tRNA is an adapter molecule that bring amino acids to corresponding codons. Hence the correct answer is option D.

96) DNA footprinting can be used to locate the regions where the transcription factors can bind like promoters . Hence the correct answer is option D.

97) G proteins themselves are like switch which are activated by protein kinases.Hence the correct answer is option D

98)smooth endoplasmic reticulum don't have ribosomesome, thus can not synthesize proteins.Hence the correct answer is option C

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