Clear my selection 7 Multiple Choice 2 points Which statement about primase is true? It adds a ribonucleotide to the 3' end of a growing RNA molecule It reads template DNA 5' to 3' It separates bonds between nucleotides during DNA replication It adds RNA bases that provide a free 3'-OH group for the growing DNA stra Clear my selection
Added by Joseph P.
Close
Step 1
The question asks to identify the true statement about primase. Primase is an enzyme involved in DNA replication. Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 78 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
RNA polymerase produces an RNA polymer in the _______ direction and reads the template DNA strand in _______ direction which 3' to 5', 3' to 5' 5' to 3', 3' to 5' 3' to 5', 5' to 3' 5' to 3', 5' to 3' Which of the following replication proteins is correctly paired with its function? Primase - removes RNA primers and replaces them with DNA Single-strand binding proteins - synthesizes a short RNA sequence to initiate replication Helicase - joins Okazaki fragments Ligase - enhances separation of DNA strands Topoisomerase - relieves torsional stress due to unwinding by the DNA
Which of the following statement(s) about E. coli primase is/are correct? It is responsible for synthesizing RNA primers. It is responsible for synthesizing DNA primers. The primer is typically 10-12 nucleotides long of RNA. The primer this enzyme synthesizes applies to the lagging strand synthesis. QUESTION 2 Which of the following statement(s) about eukaryotic DNA replication is(are) correct? Eukaryotic DNA replication terminates when the replication fork encounters termination sequence at the end of chromosome. The origin of replication in eukaryotes is called ARS element. There are multiple origins of replication during eukaryotic DNA replication. The RNA primers are removed by DNA polymerase beta during replication. QUESTION 3 Which of the following statements are correct concerning Okazaki fragments? Reform the double-helix following replication. Assist in the synthesis of DNA from the lagging strand. Assist in forming the replication fork. DNA ligases connect these fragments together. QUESTION 4 Which of the following(s) statements correctly describe the difference between leading and lagging strand synthesis? The primase lays down multiple RNA primers on both leading and lagging strands during their synthesis. The synthesis of leading strand is continuous whereas the synthesis of lagging strand is discontinuous. In both the leading and lagging strand, the synthesis of DNA proceeds in a 5' to 3' manner. In the lagging strand synthesis, the direction of DNA synthesis proceeds along the the replication fork rather than away from the replication fork. QUESTION 5 Which characteristics of DNA polymerase is(are) critical for its ability to synthesizing the DNA along the leading and lagging strands in E. coli? It is responsible for unwinding the supercoliing ahead of each replication fork. It catalyzes the formation of covalent bonds between adjacent nucloetides. It is able to remove mismatched bases by proofreading/exonuclease cleavage. It is capable of synthesizing the RNA primers.
Keemin L.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD
