Sirna - Study guides, Class notes & Summaries

BIO 1A03 TEST 2 QUESTIONS AND ANSWERS ALREADY PASSED The lacZand lacY genes are transcribed when a) lactose is absent and glucose levels are high. b)lactose is present and glucose levels are low. c)lactose is present, regardless of the level of glucose in the cell. d) glucose levels are low, regardless of the level of lactose in the cell. b) The CRP-cAMP complex binds the lactose operon when a) glucose levels and cAMP levels are low. b) glucose levels are high and cAMP levels are low. c)...

CMMB 461 Final Exam Actual Questions and Answers with complete solution what is the gene silencing process? - answergene silencing is sequence specific and mediated by double stranded RNA molecules (like siRNAs and shRNA/microRNA) at what level is gene silencing? - answerthe post-transcriptional level (mRNA degradation and translation repression) where was gene silencing first initially observed? - answerinitially observed in petunias where over-expression of a pigmentation gene resulted ...

FGP Quiz 4 Exam Questions With Verified Answers. Based on nomenclature mir-112a and mir-112b are: - brothers - sisters - parent-child - neighbours - evolutionarily related - answersisters When comparing genomes of all organisms, the component that really differentiates us is the quantity of - mRNA - miRNA - siRNA - non-coding DNA - answernon-coding DNA miRNA is transcribed by - RNA Pol I - RNA Pol II - RNA Pol III - RNA Pol IV - RNA Pol V - answerRNA Pol II The founding membe...

RNA can fold into an __________: Double helical RNA with Watson-Crick base-pairing and GU wobble (weak) pairs __________: Observed for alternating rCrG sequences under extreme salt concentrations (like 6M NaClO4) The __________ (typical DNA form) has never been observed in RNA correct answersA-form, Z-form, B-form DNA is mostly found in helical forms. In general, RNAs (like proteins) adopt more diverse and complex ____________________. This structural diversity correlates with the wide va...

MMSC 490 Final Exam Practice Questions and Answers Which of the following regulates genes by binding directly to transcription proteins? a. Growth hormone b. insulin c. steroid hormones d. epinephrine - Answer ️️ -c. steroid hormones Monomeric G proteins, such as Ras and several elongation factors, are usually in the active state when a molecule of ____ is bound to them. a. GDP b. GTP c. ADP d. ATP - Answer ️️ -b. GTP The first amino acid of eukaryotic polypeptides is a. the...

Nucleic Acid grows by attachment of 5' phosphate group of the incoming nucleotide to the 3'hydroxyl group of the last nucleotide double stranded DNA most energetically favorable state for DNA Purines double-ring structure Adenine (A) + Guanine (G) Pyrimidine single-ring structure Uracil (U)+ Cytosine Messenger RNA (mRNA) -template for all protein synthesis -encode all information necessary to produce proteins Heterogeneous nuclear RNA primary product o...

Nucleic Acid grows by attachment of 5' phosphate group of the incoming nucleotide to the 3'hydroxyl group of the last nucleotide double stranded DNA most energetically favorable state for DNA Purines double-ring structure Adenine (A) + Guanine (G) Pyrimidine single-ring structure Uracil (U)+ Cytosine Messenger RNA (mRNA) -template for all protein synthesis -encode all information necessary to produce proteins Heterogeneous nuclear RNA primary product o...

AAB Molecular Diagnostics- Final Exam [100% PASS] /verified/ Nucleic Acid *Ans* grows by attachment of 5' phosphate group of the incoming nucleotide to the 3'hydroxyl group of the last nucleotide double stranded DNA *Ans* most energetically favorable state for DNA Purines *Ans* double-ring structure Adenine (A) + Guanine (G) Pyrimidine *Ans* single-ring structure Uracil (U)+ Cytosine Messenger RNA (mRNA) *Ans* -template for all protein synthesis -encode all information necessary to p...

MMSC 490 Exam 3 Questions with Correct Answers Aminoacyl tRNA synthetases are enzymes that attach the terminal CCA sequence to transfer RNAs. attach amino acids to specific transfer RNAs. connect amino acids while they are held in place on ribosomes by transfer RNAs. synthesize transfer RNAs. - Answer-attach amino acids to specific transfer RNAs. E. coli contains about .................... different tRNAs that code for .................... different amino acids. 62; 40 40; 20 50; 2...

ACS BIOCHEMISTRY EXAM QUESTIONS AND ANSWERS 2024 what are nucleotides? nucleotides are the monomer unit for nucleic acids and are composed of nitrogenous bases, 5 carbon sugars and a phosphate group. nucleic acids are bipolymers of _____ nucleotide monomers what is DNA and what is its stability? DNA is more stable than RNA and carries genetic information, and is double stranded. what is RNA and what is its stability? RNA is less stable and is an intermediate in expression of genetic in...