Trna and an mrna - Study guides, Class notes & Summaries

Bi 112 Ch 15 Questions (2nd Batch) Questions and Answers Already Passed What is the role of DNA polymerase in DNA replication? DNA polymerase adds nucleotides to the growing DNA strand and proofreads for errors during replication. How does the structure of DNA contribute to its function? The double helix structure of DNA allows for easy replication and storage of genetic information in a stable form. What is a mutation, and how can it affect an organism? A mutation is a change i...

AP Biology Semester 1 Review Latest Update Graded A+ 3 phases of transcription initiation, elongation, termination 3 steps of protein synthesis transcription, RNA processing, translation 5' cap The end of a pre-mRNA molecule modified by the addition of a cap A site One of a ribosome's three binding sites for tRNA during translation. Holds the tRNA carrying the next amino acid to be added to the polypeptide chain. acid any substance that dissociates in water to increase the c...

Biology Proctored Exam Penn Foster Questions and Answers 100% Pass What is the function of the cell's cytoplasm? To provide a medium for chemical reactions and support organelles. What is the role of DNA polymerase in DNA replication? To synthesize new DNA strands by adding nucleotides complementary to the template strand. Which organelle is responsible for producing ribosomal subunits? Nucleolus What is the primary function of the cell membrane's protein channels? To fac...

Transcription synthesis of RNA from DNA Transcription results in mRNA RNA polymerase makes mRNA mRNA makes proteins RNA polymerase binds to DNA Transcription factors (TFs) A regulatory protein that binds to DNA and affects transcription of specific genes. Can wither activate or repress expression of genes Termination of transcription RNA polymerase reaches a terminator sequence (Stop codon) and detaches from the templateTranslation Process by which mRNA is decoded and a protein is produc...

Bioengernetics - Answer-How energy flows through organisms. ATP - Answer-Used for mechanical, transport, and chemical work. ATP is also an RNA nucleotide. Mechanical Work - Answer-Energy used in motor proteins and muscle cells during contractions. Transport Work - Answer-Energy used to move substances against their gradient. Chemical Work - Answer-Energy used to convey polymers into monomers. Gibs Free Energy - Answer-Portion of a systems energy that can preform work when temperature and p...

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...

ABSITE Questions with Correct Answers 2 weeks after a whipple operation, your patient continues to have early satiety with oral intake. You decide to start metoglopramide (Reglan) and erythromycin. What receptor does erythromycin bind to increase gastrointestinal motility? - Correct Answer Motilin (found primarily in the stomach, duodenum, and colon) Proteins are synthesized from: a. mRNA b. tRNA c. dsDNA d. ssDNA - Correct Answer mRNA 1 week after an APR, our patient develops urose...

Bio 115 Final Exam- WVU Questions and Answers Already Passed How can one eukaryotic gene lead to one transcript, but multiple different proteins? Alternative splicing What is the primary transcript of eukaryotic genes? mRNA What is the attachment site for RNA polymerase? Promoter region Gene regulation in both prokaryotes and eukaryotes is achieved by controlling which process? transcription A eukaryotic gene has all of the following except: introns, a promoter, an operator, ...

BIOCHEM EXAM 3 MCQS (ICS/SDL/BRS) QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED E. Has a cyclic structure, distinct R group is least likely to have an error. If the R group is distant or unique it is least likely to pick up a different amino acid. Which amino acid is least likely to have an error made by its corresponding aminoacyl tRNA synthetase? A. Isoleucine tRNA synthetase is slightly larger than Valine tRNA synthetse. It is more likely to mistakenly put valine in place of iso...

In his transformation experiments, what did Griffith observe? b. Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form. Cytosine makes up 42% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be thymine? a. 8% At a specific area of a chromosome, the sequence of nucleotides below is resent where the chain opens t...