Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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- Explain and demonstrate the steps in
DNA replication using a replication fork. Replicate 10nucleotides onto the leading strand and 10 nucleotides on the lagging strand.
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- Show the direction of replication of the new strands and explain what the lagging and leading strands are.arrow_forwarduse the terms RNA primase dna polymerase helicase leading strand and lagging strand to briefly describe how DNA replicatesarrow_forwardOn paper, replicate the following segment of DNA: 5’ A T C G G C T A C G T T C A C 3’ 3’ T A G C C G A T G C A A G T G 5’a. Show the direction of replication of the new strands and explainwhat causes lagging and leading strands to show different patternsof replication.b. Explain how this is semiconservative replication. Are the newstrands identical to the original segment of DNA?arrow_forward
- describe the Structure of Replication bubblesarrow_forwardDescribe the process of DNA Replication, from the time the cell breaks the first bond at the origin of replication to the time the process is finished for a prokaryotic cell.arrow_forwardInterpret a diagram of a bi-directional replication fork and correctly determine strand polarity and fork direction.arrow_forward
- Draw a diagram of DNA replication that has the double-stranded DNA with the replication bubble, has all 6 enzymes, two leading strands including their primers, and demonstrates how the lagging strand is replicated.arrow_forwardCompare and contrast DNA replication in bacteria and eukaryotes.arrow_forwardMedgie is creating his science fair project on DNA replication. His final display board shows the following. Human DNA Replication Steps Step 1 DNA unwinds in the nucleus Step 2 Complementary base pairs are deleted Step 3 DNA rewinds back together Step 4 The newly made DNA helix is placed in a cell formed in Mitosis According to Medgie's project, which of the following identifies and explains which of the steps is incorrect? O Step 4 is incorrect because not all human cells require DNA. O Step 3 is incorrect because the DNA remains unwound to be transcribed into RNA. Step 2 is incorrect because the complementary base pairs are used as a template, not deleted. Step 1 is incorrect because DNA doesn't unwind in the nucleus, instead it unwinds in the cytoplasm Previousarrow_forward
- Explain the general role of DNA replication and the names of the relevant enzymes involved in the overall process and what role do the leading and lagging strand play and what direction does replication occur on the DNA strand?arrow_forwardAddress the general properties of the chromatin within the following types of DNA: DNA undergoing active transcription DNA within a mitotic chromosome DNA immediately after passage of the replication fork centromeric DNAarrow_forwardThe diagram depicts one of the two strands of DNA, at the end of a chromosome (top strand). Replication of this strand produced the two fragments shown at the bottom of the diagram. Which of the statements below is correct regarding filling the gaps that exist in the newly synthesized DNA? Hint: remember the directionality requirement for DNA polymerase. 5' 0 0 0 0 (a) gap (a) can be filled gap (b) can be filled both gaps (a) and (b) can be filled neither gaps (a) nor (b) can be filled (b) 3'arrow_forward
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