Rna modifications - Study guides, Class notes & Summaries

Genetics Module 2 Exam With Questions and Answers 100% Solved What does it mean to say that double-stranded nucleic acids are antiparallel? - answer(Marked off)It means one strand is 5'-3' and the other is 3'-5'. The strands are running in opposite directions so the nucleic acids are antiparallel. Splicing of eukaryotic pre-mRNA involves ___ reactions and occurs in the ___ . a. methylation b. transesterification c. polyadenylation d. nucleus e. cytoplasm - answerb,d An organism ha...

BIO 1A03 Midterm 2 Questions and Answers Graded A Prokaryotic growth and cell division -nutrient-rich environment -favorable temperatures Housekeeping genes -genes required at all times for normal function -all ways transcribed and translated -allow constant maintance for general cellular activity -e.g. structural protein of a cell, DNA and RNA polymerase, genes coding for ribosomal proteins -constitutive Regulated genes genes that can be turned on and off at a needed basis Francois Jacob and...

Genetics Exam 3 Practice Test 50 Questions with Verified Answers Gene conversion results from A. Discontinuous replication B. Photoreactivation C. Mismatch repair D. Gap Repair E. C and D - CORRECT ANSWER E. C and D The picture below is two Holliday junctions in a pair of DNA molecules undergoing recombination Breakage and rejoining of the strands indicated by the arrows () and () results in crossover. A. 1 and 2 B. 2 and 3 C. 3 and 4 - CORRECT ANSWER B. 2 and 3 In eukaryoti...

Genetics Exam 2 practice exam 107 Questions with Verified Answers In five Hfr strains, each of which was used to build a time-of-entry map, the genes entered the recipient cells as follows: Strain 1: S L A C T F Strain 2: N P F T C A Strain 3: T F P N U Y Strain 4: S H Y U N P Strain 5: U N P F T C Which of the following represents a correct compilation of these results? A) S L A C T F P N H C U B) N P F T S L A C H U T C) T C A L S P N U Y H D) U N P F T C A L S T F E) S L A C T F...

BIO 111 TAMU Fletcher Exam 3 Already Graded A Friedrich Miescher discovered DNA in 1869 But did not know (Isolated phosphate) rich acidic compounds Frederick Griffith Discovered transformation during an experiment that involved injecting mice with smooth S cells, rough R cells, heat-killed S cells, and heat-killed S cells with living R cells. Avery, MacLeod, McCarty Identified the heritable substance as DNA Used test tubes- vitro Hershey and Chase performed experiments showing that DNA is the...

gene Unit of heredity containing the instructions that dictate the characteristics or phenotype of an organism; in molecular terms, a segment of DNA that directs the production of a particular protein or functional RNA molecule. transription Process in which RNA polymerase uses one strand of DNA as a template to synthesize a complementary RNA sequence. RNA Molecule produced by the transcription of DNA; usually single-stranded, it is a polynucleotide composed of covalently linked ribonucleotide...

Genomics Midterm Exam Questions With Complete Solutions. DNA is a polymer composed of all of the following EXCEPT: a. nitrogenous base b. 5-carbon sugar c. codon d. phosphate group c codon = 3 nucleotide sequence Which of the nitrogen-containing bases are purines? a. adenine b. cytosine c. thymine d. guanine a, d cytosine and thymine are pyrimidines In a DNA sequence, adenine nitrogen base pairs with _________, while guanine pairs with _________. a. uracil, thymine b. th...

The process of making RNA from DNA - Answer-Transcription The process by which RNA is decoded and polypeptides are formed - Answer-Translation Autonomously replicating small circles of DNA present in some bacteria - Answer-Plasmids Modifications of DNA in an organism - Answer-Genetic engineering Parkinson's, diabetes, and cystic fibrosis (CF) are examples of - Answer-Genetic disorders Organism that does not have nucleus or membrane bound organelle, so DNA in contained in cytoplasm - Answe...

MMSC490 Practice Exam 1|123 Questions with Verified Answers cytoplasmic organelles are: a. absent in prokaryotic cells and present in eukaryotic cells. b. present in both prokaryotic and eukaryotic cells. c. present in prokaryotic cells and absent in eukaryotic cells. d. absent in both prokaryotic and eukaryotic cells. - CORRECT ANSWER a. absent in prokaryotic cells and present in eukaryotic cells E. coli is a useful model system for molecular biology studies because: a. it has a smal...

GNRS 515 Advanced Pathophysiology Exam Questions with Correct Answers DNA replication - Answer-untwisted and zipped by hydrogen bonds being broken between two pairs DNA polymerase - Answer-pairs new bases, aka complementary base pairing (ATCG) Chromosome aberrations occur where? - Answer-occurs among number or structure Explain base pair substitution - Answer-mutation where ATCG base pairing is mixed Missense mutation - Answer-A base-pair substitution that results in a codon that codes ...