1. Explain the three phases of DNAReplication of eukaryotic cell asillustrated below and define eachlabels. *DNA primaseDNA-ligaseRNA primerDNA-Polymerase (Pola),3'Laggingstrand3'5'Okazaki fragment5'5'LeadingstrandTopoisomerase3'DNA Polymerase (Pol6)/HelicaseSingle strand,Binding proteinsYour answer

DNA Replication is the process through which DNA copies itself. The double stranded molecule…

1. Explain the three phases of DNA Replication of eukaryotic cell as illustrated below and define each labels. * DNA primase RNA primer DNA-ligase DNA-Polymerase (Pola), 3' Lagging strand 3' 5' Okazaki fragment 5' 5' Leading strand Topoisomerase 3' DNA Polymerase (Pol5)| Helicase Single strand, Binding proteins

1. Explain the three phases of DNA Replication of eukaryotic cell as illustrated below and define each labels. * DNA primase RNA primer DNA-ligase DNA-Polymerase (Pola), 3' Lagging strand 3' 5' Okazaki fragment 5' 5' Leading strand Topoisomerase 3' DNA Polymerase (Pol5)| Helicase Single strand, Binding proteins

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter14: Dna Structure And Replication

Section: Chapter Questions

Problem 16TYK

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3b) Briefly explain what telomerase does, how it accomplishes what it does, and why that allows a cell to completely and accurately replicate the ends of linear DNA molecules. (please note that the question does not ask you to explain the entire process of replication of the end of a linear DNA strand, it only asks about the function of telomerase in this process)
25. Given the following mRNA codons and amino acids, construct a polypeptide from this DNA strand. DNA AAT GGT CCA CCG CTG 1TI 111 11 T Ou GGT GGC GIC MRNA Amino Acids UUA = leucine %3D GAC = asparginine GGU = glycine GGC = glycine CCA = proline %3D AMAM b iwi tant neto10 e 2obitoabun St
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. Description/Funetion catalyzes the unwinding of DNA strands Process involved in helicase replication 1. RNA primer 2. leading strand 3. RNASE 4. anti-sense strand 5. anticodon 6. RNA polymerase II 7. DNA polymerase 8. promoter site 9. DNA ligase 10. exit site
a. As a result of the structure of DNA and RNA, replication, transcription and translation are possible. What can nucleic acids do, as a result of their structure, that enables these processes to occur? The figure below shows a simplified schematic representation of a segment of DNA. The DNA is labelled with the numbers 1 – 14 for easy reference. -35 sequence Pribnow box 5' UTR 3' UTR DNA TTGACA TATAAT -35 -10 Gene a Gene B Gene y 1 2 3 4 5 6 7 8 9 10 11 12 13 14 UTR = untranslated region b. At which position on the DNA (number 1 - 14) will transcription be initiated? c. At which position on the DNA (number 1 - 14) will the first signal for translation be found? d. Between which two regions on the DNA will the polyadenylation signal be found? Use the numbers to indicate the region. e. Between which two regions on the DNA will the first Shine-Dalgarno / Ribosome Binding Sequence be found? Use the numbers to indicate the region.
Match the components of bacterial replication and transcription correctly. v [Choose ] Topoisomerase Il helicase loader RNA polymerase must accumulate enough for DNA replication to begin Single stranded binding protein sigma factor proteins of the RNA polymerase adds nucleotides to RNA transcript DnaA bacterial helicase DNA gyrase - needed for recognition of promoter site in transcription Beta clamp DNA polymerase Tau complex two alpha units, beta, beta prime, and omega Dnac [ Choose ) DnaB ( Choose]
32)An origin of replication is given below. Sequences of selected parental strand regions are given. The directionality of the bottom parental strand is indicated. Use the diagram to answer the corresponding questions. #2 *1 CTAAGCA ATCGAGG XXXXX XXXX 3' ICTAGTT 5' ge exon #3 a.) On the diagram, label the 5' and 3' end of the top strand of parental DNA b Draw arrows to indicate direction of DNA synthesis for each of the 4 daughter strands. e) For each daughter strand, specify if synthesis is continuous or discontinuous. d) On your diagram, label the 5' and 3' ends of the newly synthesized daughter strands e.) Which parental strands are the template for leading strand synthesis? (# 1- 4) Strand # Strand # f.) Which parental strands are the template for lagging strand synthesis? (# 1- 4) Strand # Strand # g.) What is the specific sequence of the primer required to start DNA replication ior strands 1 and 3? Assume the primer will bind to the location where the base sequence is given on…
Eukaryotic Genetic Sequence: 5'-TAC CAT GAT CCC TAT - 3' 1. What would be the newly synthesized DNA strand and explain how the strand will be replicated. Where in the cell would this occur? 2. What would be the synthesized mRNA strand, and how is it transcribed from the original DNA strand, and then converted from a pre-mRNA strand to a mature mRNA? Where in the cell does this occur? 3. What would be the anti-codons for the tRNA. What are the amino acids generated based on the RNA. How are these amino acids translated into protein and where in the cell does this happen?
1. Are each of the following mutations silent, missense, nonsense, or frameshift mutations, why? The original coding DNA strand is: 5’-ATGGGACTAGATACC-3’. 2. 5’-ATGGGTCTAGATACC-3’ 3. 5’-ATGGGACTAAGATACC-3’ 4. 5’-ATGTGACTAGATACC-3’ 5. 5’-ATGGGACTAGTTACC-3’
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
AUG Met ACG ANALYSIS ANALYSIS: A DNA strand undergoes all the process included in the central dogma. The DNA strand used as a template is given below: Parent strand DNA: 5-AGA-ACT-AAA-СТА-ТCG-СТT-CGT-3 DNA daughter strand: hnRNA: MRNA: original protein: mutated MRNA: mutated protein: second letter G UCU UUU Phe UAU Tyr UGU UGC Cys UAA stop UGA stop| A UAG stop UGG Trp UUC UCC UAC Ser Leu UCA UUG UUA UCG G CUU CCU CAU CGU His CAC CAA CUC C CGC Leu CUA Pro Arg A ССА CGA Gln CAG CUG CCG CGG AUU ACU AAU AUC lle A AUA AAC Asn AAA AGC AGA AGU Ser ACC Thr АСА AAG LyS GAU ASP AUG Met ACG AGG Arg G GUU GCU GGU) GUC GCC GAC GGC Val GUA GCA Ala GAA Gly GGA A Glu GUG GCG GAG GGG G Translating the unmutated MRNA that was obtained after splicing, the original protein sequence will be? The original protein is [A] (For your answer, use the one-letter symbol (all caps) for the amino acid residues separated by dashes, e.g. C-A-S-H). first letter third letter
Transcribe and translate the following DNA sequence (nontemplate strand): 5'- ATGGCCGGTTATTAAGCA-3'
Discuss Concepts During replication, an error uncorrected by proofreading or mismatch repair produces a DNA molecule with a base mismatch at the indicated position: The mismatch results in a mutation. This DNA molecule is received by one of the two daughter cells produced by mitosis. In the next round of replication and division, the mutation appears in only one of the two daughter cells. Develop a hypothesis to explain this observation.