Biochemistry ACS Exam Questions and Answers nucleotides Ans- monomeric unit for nucleic acids and are composed of nitrogenous base, 5-carbon sugar and a phosphate nucleic acids are biopolymers of Ans- nucleotide monomers DNA Ans- -more stable - carrier of genetic information - double stranded RNA Ans- - less stable - intermediate in expression of genetic information - can form secondary structure (as in tRNA) by hydrogen bonding with itself - not all forms of RNA are intermediates in expression of genetic information - single stranded (usually) types of RNA Ans- - tRNA - rRNA - siRNA - miRNA tRNA Ans- - transfer RNA - holds amino acids used in protein synthesis - WOBBLE position (inosine) rRNA Ans- - ribosomal RNA - part of the ribosome siRNA Ans- - small interf ering RNA - short term silencing of pleiotrophin coding genes - targets mRNA for degradation miRNA Ans- - micro RNA - silencing and post -transcriptional regulation of gene expression purines Ans- - 2 rings - adenine, guanine
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Biochemistry ACS Exam Questions and Answers
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nucleotides Ans- monomeric unit for nucleic acids and are composed of nitrogenous base, 5-carbon sugar and a phosphate nucleic acids are biopolymers of Ans- nucleotide monomers DNA Ans- -more stable - carrier of genetic information - double stranded RNA Ans- - less stable - intermediate in expression of genetic information - can form secondary structure (as in tRNA) by hydrogen bonding with itself - not all forms of RNA are intermediates in expression of genetic information - single stranded (usually) types of RNA Ans- - tRNA - rRNA - siRNA - miRNA tRNA Ans- - transfer RNA - holds amino acids used in protein synthesis - WOBBLE position (inosine) rRNA Ans- - ribosomal RNA
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ACS BIOCHEMISTRY EXAM Questions and Answers
