Polymerases - Study guides, Class notes & Summaries

nucleic acids correct answers genetical material of cells and viruses mutations correct answers a change in structure of nucleic acid missense mutation correct answers A base-pair substitution that results in a codon that codes for a different amino acid. nonsense mutation correct answers A mutation that changes an amino acid codon to one of the three stop codons, resulting in a shorter and usually nonfunctional protein. silent mutation correct answers A mutation that changes a singl...

MMSC490 Exam 2 Questions with 100% Correct During E. coli DNA replication, all newly synthesized or nascent DNA fragments must have one of the following characteristics a. a 5' hydroxyl and 3' triphosphate b. a 5' triphosphate and 3' monophosphate c. 5' monophosphate and 3' hydroxyl d. 5' triphosphate and 3' hydroxyl - Answer ️️ -d. 5' triphosphate and 3' hydroxyl Among the 3 DNA polymerases in E. coli, DNA polymerases I and III differ in a number of properties that make DN...

MMSC490 Exam 2 Questions with Complete Answers Which eukaryotic DNA polymerase replicates the lagging strand in the 3ʹ to 5ʹ direction? a. α b. γ c. δ d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. - Answer ️️ -d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. DNA polymerases can synthesize DNA: a. de novo, by catalyzing the polymerization of free dNTPs. b. by adding dNTPs to complementary dNTPs on a single-...

DNA that encodes information for proteins is within the ________ - nucleus What makes up the transcription complex that transcribes DNA? - Polymerases and transcription factors Transcriptional complexes transcribe DNA into _______ - mRNA ________________ machinery reads mRNA after it has been shuttled into the cytoplasm - translational Where are ribosomes formed? - nucleus ______________ make up the translational machinery that reads mRNA - Ribosomes The amino acid chain that forms the p...

You are most likely to see hag fish, sperm whales, and viperfish inhabiting which of the following zones of the ocean? a. abyssal b. bathypelagic c. epipelagic d. mesopelagic - Answer-bathypelagic What was the first seed plant to appear? a. angiosperm b. bryophytes c. gymnosperm d. nonvascular plants - Answer-gymnosperm In a pedigree for an autosomal recessive disorder, which of the following will occur if two homozygous unaffected individuals mate? a. They will have affecte...

BIOL 2120 Chapter 17 Pre-Test Exam Questions With Correct Answers. Which of the following features is a significant difference in the function of DNA polymerases versus RNA polymerases? See Section 17.1 - CORRECT ANSWER RNA polymerase does not require a primer to add new nucleotides. What is the function of the sigma subunit of RNA polymerase in bacterial transcription? See Section 17.1 - CORRECT ANSWER Sigma is the portion of the enzyme that recognizes specific sequences in the promoter...

Central Dogma of Molecular Biology - ️️DNA-transcription-RNA-translation-protein DNA vs RNA - ️️deoxyribose sugar (H) vs. ribose sugar (OH), thymine vs. uracil , double strand vs. single strand template strand (in transcription) - ️️the DNA strand that is used as the code to "build" a complementary strand of mRNA. strand that is used for transcribing from 3'-5' on DNA strand Because RNA is single-stranded - ️️it can fold into a variety of shapes which gives it functi...

BSC 108 Exam 3 Kennedy Questions And Answers The structure of a strand of DNA. - ANS it is a double helix, like a twisted ladder. the ladder rings are nucleotide subunits and they have a covalent bond to the sugar phosphate backbone (made of deoxyribose and a phosphate group) What are the nucleotide subunits? - ANS adenine, guanine, cytosine, and thymine How are the subunits held together? - ANS through a hydrogen bond What are the nucleotide subunit compliments? - ANS ...

Similarities between eukaryotic and prokaryotic cells 1) Semi-conservative 2) Bidirectional Prokaryotic cells 1) Circular DNA 2) Single origin of replication Eukaryotic cells 1) Linear DNA 2) Multiple origins of replication New strands are always synthesized from: 5' --> 3' end of each strand Template strand is read: 3' --> 5' Chain extension occurs: by adding a dNTP to free 3' end of growing polynucleotide chain DNA polymerase DNA s...

During E. coli DNA replication, all newly synthesized or nascent DNA fragments must have one of the following characteristics a. a 5' hydroxyl and 3' triphosphate b. a 5' triphosphate and 3' monophosphate c. 5' monophosphate and 3' hydroxyl d. 5' triphosphate and 3' hydroxyl correct answers d. 5' triphosphate and 3' hydroxyl Among the 3 DNA polymerases in E. coli, DNA polymerases I and III differ in a number of properties that make DNA polymerase III a more suitable enzyme for c...