Telomeres serve as caps protecting the ends of linear chromosomes. Which of the following is FALSE regarding the replication of telomeric sequences? 1. Telomerase adds additional repeated sequences to the lagging template strand. 2. Telomerase carries an RNA molecule that it uses as a template strand. 3. Telomerase acts as an RNA polymerase to increase the length of telomeres.

Telomeres serve as caps protecting the ends of linear chromosomes. Which of the following is FALSE regarding the replication of telomeric sequences? 1. Telomerase adds additional repeated sequences to the lagging template strand. 2. Telomerase carries an RNA molecule that it uses as a template strand. 3. Telomerase acts as an RNA polymerase to increase the length of telomeres.

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Description: Telomeres serve as caps protecting the ends of linear chromosomes. Which of the following is FALSE regarding the replication of telomeric sequences? 1. Telomerase adds additional repeated sequences to the lagging template strand. 2. Telomerase carrie

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 23QP: How does DNA replication occur in a precise manner to ensure that identical genetic information is...

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Arrange the following to the correct sequence that shows the process of DNA replication. 1. Unwinding of DNA and formation of replication fork II. Proofreading of strands and replacing any errors during the synthesis. III. Synthesizing a new strand that matches the template, by extending the primer via the addition of the nucleotides to the 3' end. IV. Formation of semiconservative strands
Match the following descriptions with the enzymes involved in DNA replication. 1. Adds an RNA primer to begin elongation 2. Removes the RNA primer from the beginning of the newly constructed strands 3. Splices lagging strand segments 4. Cleaves the rung of the DNA double helix ladder Description: DNA DNA Helicase Primase Enzyme: Polymerase Ligase
1)give 3 differences between replication in prokaryotes and replication in Eukaryotes 2)For each item in the following table, decide whether it is related or involved in transcription, translation or replication. 1. Splicing 2. Stop codon 3. Lagging strand 4. RNA polymerase 5. DNA polymerase 6. Telomerase 3) Give the mRNA and the polypeptide (amino acid sequence) that results from the following DNA template strand: DNA template T A C A C G G G C G T A mRNA Amino acid sequence
A region of DNA has six copies of a trinucleotide repeat. During one round of replication, the template strand slips as shown in the diagram. How many repeats will the DNA have if the newly synthesized strand is used as a template in the next round of replication? 1 5'-CAG 3'-GTC GTC 4 2 GTCH 3 2 CAG CAG GTC 3 GTC 5 4 CAG-3' GTC -5' 6 Next round of DNA replication
1.1 Which of the following enzymes is the main replication enzyme in prokaryotes? 1. DNA polymerase I 2. DNA polymerase II 3. DNA polymerase III 4. Topoisomerase 5. DNA ligase 1.2 The process for forming RNA from DNA is called 1. replication 2. transcription 3. reverse transcription 4. translation 5. RNA replication 1.3 What is the purpose of the Shine-Dalgarno sequence? 1. facilitates the binding of mRNA to the 30S subunit 2. facilitates the biding of IF1 and IF3 bind to the 30S subunit 3. catalyses peptidyl transfer 4. ensures release factors bind to the appropriate sites 5. facilitates elongation factors functioning 10. What is the correct citation for this article https://doi.org/10.1016/i.pep.2018.03.006 based on the instructions provided for this module? 1. 2. Russell et al, 2018 Russell and Gildenhuys, 2018 Russell, B.L., et al 2018 Russell, B.L. and Gildenhuys, S. 2018 Bonnie et al 2018 3. 4. 5.
Please match the following enzymes with their correct functions. Primase, Gyrase, Ligase, Polymerase, Helicase, Topoisomerase 1.Unwinds DNA at the replication fork. 2.Makes and reseal breaks in the double-helical DNA to release the torque that builds up as a result of unwinding at the replication fork. 3.Synthesizes a short RNA to provide a 3’ -OH group for the attachment of DNA nucleotides. 4.Removed RNA primers and replace them with DNA. 5.Joins Okazaki fragments.
1. For each of the items below, give a brief description (indicate function for enzymes) and indicate in which process (replication, transcription, or translation) it is involved with. helicase Description/Funetion catalyzes the unwinding of DNA strands Process involved in replication 11. terminator 12. ribosome 13. amino-acyl RNA site 14. MRNA 15. tRNA 16. rRNA 17. Shine-Dalgarno sequence 18. start codon 19. Okazaki fragments 20. coding strand 21. peptidyl tRNA site
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