Dna helicase - Study guides, Class notes & Summaries

DNA Replication - ANSWERDNA helicase breaks hydrogen bonds. Each strand acts as a template. Free nucleotides attach. Complementary base pairing occurs- AT and CG. DNA polymerase joins nucleotides. Hydrogen bonds reform. Semi-conservative replication- new DNA molecule contains one old and one new strand Transcription - ANSWERDNA helicase breaks hydrogen bonds between DNA strands. One strand acts as a template. RNA nucleotides attract to exposed complementary bases on DNA. RNA polymerase joins ...

Helicase Ans- Catalyzes ATP-dependent unwinding of DNA double helices What is the helicase in E. Coli? Ans- DNAB Single-Stranded Binding Protein Ans- Binds to unwound strands of DNA to prevent reannealing DNA Polymerase Ans- Enzyme responsible for DNA replication Uses ssDNA as a template and makes a complimentary strand by polymerizing deoxynucleotides Synthesis in 5' to 3' direction List the DNA polymerases in E. Coli Ans- Pol I, II, III DNA pol I Ans- Removes RNA primers and f...

WGU Biochemistry OA (Latest 2022/2023) Verified Answers Bohr Effect chart (low pH) C- High CO2 H- High H+ A- Acidic R-Release of O2(rt. Shift) T- tense state (in tissues) Primary structure Sequence of amino acids that make up a protein Secondary Structure Sequence of amino acids fold. Tertiary Structure -more folding in a 3D shape. -R groups (side chains) Quaternary Structure Protein has more than 1 polypeptide chain. Chemical reaction -absorb and release en...

Bio Exam 3 Questions and Answers 100% Pass What did Griffith discover in his experiment involving bacteria with capsule (S) and non-capsule (R) strains, and what molecule did Avery, MacLeod, and McCarty identify as responsible for this phenomenon? Griffith observed that DNA could transform bacteria, demonstrating for the first time that genetic material can be transferred through a process called transformation. The S-strain, with a polysaccharide capsule, is protected from the immune...

Honors Biology Semester 2 Final Exam with Complete Solutions What is the role of helicase in DNA replication? Helicase unwinds the DNA double helix by breaking hydrogen bonds between base pairs, allowing replication to begin. How does complementary base pairing ensure accuracy during DNA replication? Complementary base pairing (A with T, C with G) ensures that each new strand is an exact copy of the original template. What is a codon, and how is it related to DNA? A codon is ...

ASCP Exam Questions and Answers/Verified Answers Which is required to generate cDNA A. DNA polymerase B. RNase H C. Restriction Enzyme D. Helicase [Ans: - B What is the function of Taq Polymerase [Ans: - recognize dsDNA You have a 50 μL primer stock at 9pM/μl and want dilute the stock to 900nM. How much stock should you add(what is the dilution factor) [Ans: - 2 What gene causes hypersensitivity to Irinotecan? [Ans: - UGT1A Which allele causes hypersensitivity to Carbamazepi...

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...

CBE 205 FinalCentral dogma - correct answer -DNA to RNA to Protein -Replication-Transcription-Translation Watson and crick base pairing - correct answer -DNA: Adenine (A) to Thymine (T), Guanine(g) with cytosine (C) -RNA only change is A to U Replication - correct answer -Copying DNA -DNA polymerase catalyse the addition of DNA (deoxynucleotides) DNA -Primer is need to start new strand Direction of DNA synthesis - correct answer - 5' to 3' Major enzymes in DNA replication - co...

Honors Biology 10th grade Exam Review with Verified Solutions What is the term for the cellular process where cells convert glucose into energy in the form of ATP without using oxygen? Fermentation What is the name of the structure that helps in organizing microtubules during cell division in animal cells? Centriole What is the term for the process by which cells remove waste products through vesicles fusing with the cell membrane? Exocytosis What is the name of the p...

Penn Foster Biology Chapter 10 Questions and Answers Rated A+ What is the main function of DNA in cells? To store and transmit genetic information that guides the development and functioning of organisms. What are the building blocks of DNA called? Nucleotides. What are the three components of a nucleotide? A phosphate group, a sugar molecule, and a nitrogenous base. What is the structure of DNA known as? A double helix. Which bases are paired together in DNA? Aden...