Polycistronic - Study guides, Class notes & Summaries

UNT Biology 1710 Practice Exam 3|52 Questions with Verified Answers An excellent example of the genetic phenomenon known as continuous variation would be: a. flower color in plants. b. height in humans. c. human blood groups. d. epistasis. e. fur color in arctic animals - CORRECT ANSWER B) height in humans A human genetic trait passed from one generation to the next has an unusual inheritance pattern. The genotype and phenotype of the offspring depends only upon the genotype of the mo...

mRNAs in eukaryotes contain which of the following features? - A methylated guanosine cap at the 5' terminus - A polyadenylate tail at the 3' terminus - Generally contains a single open reading frame, hence monocistronic - Translation initiates at the first AUG - All of the above Correct Answer-All of the above Which of the following statements concerning mRNA and translation in prokaryotes is false? - As in eukaryotes, mature mRNA of prokaryotes is first transcribed as a precursor m...

rRNA Correct Answer-ribosomal RNA, a component of ribosomes, which carry out protein synthesis mRNA Correct Answer-messenger RNA, gets translated into proteins tRNA Correct Answer-transfer RNA, adapter molecules that translate the info in mRNA into a specific amino acid sequence RNA Correct Answer-uses ribose and has an OH on C2 cistron Correct Answer-gene monostronic mRNA Correct Answer-carries code for 1 polypeptide. Found in eukaryotes polycistronic mRNA Correct Answer-codes...

which of the following components of an amino acid differs from one amino acid to another - Answerthe R group Sometimes atoms gain or lose particles. The loss of which of the following would result in a change of overall electrical charge? - Answer-protons or electrons what is the cell theory - Answer-1. theof cells A pair of shared valence electrons is referred to as a(n) - Answer-covalent bond scientists wanted to track the movement of specific organic molecules in a cell by using radioac...

True or false? The genetic code is degenerate, meaning that a codon can specify more than one amino acid. Ans: False The degeneracy of the genetic code means that an amino acid may be coded for by more than one codon. However, a single codon can only ever specify one amino acid. A DNA sequence produces a mutant protein in which several amino acids in the middle of the protein differ from the normal protein. What kind of mutation could have occurred? Ans: An addition and a deletion muta...

Replication correct answers DNA must be retained intact, yet copied to make new cells Transcription correct answers DNA must be turned into multiple "working copies" to provide instructions for enzymes/structural proteins production Translation correct answers RNA must be read and decoded to form the enzymes/structural proteins of the cell DNA repair correct answers systems must have the ability to deal with damage Transcription in Bacteria correct answers - involves RNA polyme...

MCB4304 Exam 2 Questions & Answers 2024/2025 lacZ : lacY : lacA : They are all transcribed together to produce one messenger RNA, called a ___ message, starting from a single ___. - ANSWERSlacZ : b-galactosidase; cuts the lactose into glucose and galactose lacY : lactose (galactoside) permease; allows lactose to enter the cell lacA : galactoside transacetylase; function unclear They are all transcribed together to produce one messenger RNA, called a polycistronic message, starting...

Bs161 final 2024 Exam Questions With Answers In messenger RNA, the protein-coding sequence is present in: Question options: exons. introns. exons and the poly(A) sequence. introns and the poly(A) sequence. - ANSWER exons. Which process produces multiple proteins from the same primary transcript in the same cell? Question options: chromatin remodeling histone modification alternative splicing combinatorial control - ANSWER alternative splicing Alternative splicing allow...

two parts of holoenzyme (helper to RNA polymerase in transcription in bacteria) correct answers core enzyme and sigma factor (determining correct location for transcription) transcription in bacteria correct answers sigma factors bind to RNA pol core enzyme and direct it to promoter transcription prceeds different sigma factors different genes ways to stop transcription correct answers rho-dependent and rho independent rho dependent correct answers rho protein follows RNA pol and...

You discover a new bacterial operon that is induced by the presence of lead. You find a mutation that results in a mutation in the operator that changes the binding sequence so that the repressor is always bound to it. Would this mutation be rescued by a plasmid with a wild type copy of the operon and why? correct answers Yes, because the repressor would still be able to bind to the operator in the plasmid allowing for normal expression from the plasmid Why is it difficult to find a treatment...