Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 15PS
A cell containing a single chromosome is placed in a medium containing radioactive phosphate, making any new DNA strands formed by
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What proteins are crucial for creating and maintaining DNA replication forks? Choose the best explanation.
Question 2 options:
Helicase creates the replication fork; primase keeps the single strands from closing shut.
Helicase creates the replication fork; single-strand binding proteins keep the single strands from reuniting.
Ligase creates the replication fork; DNA polymerase II keeps the single strands from reuniting.
Helicase creates the replication fork; ligase keeps the single strands from closing shut.
DNA polymerase is important in the replication process because it can join together segments of DNA into a single daughter strand.
Select one:
True
False
Match the following descriptions with the enzymes involved in DNA replication.
Adds an RNA primer to begin elongation
Removes the RNA primer from the beginning of the newly constructed strands
Splices lagging strand segments
Cleaves the rung of the DNA double helix ladder
Description:
Answer
Answer
Answer
Answer
Enzyme:
Helicase
DNA Polymerase
Primase
DNA Ligase
Chapter 10 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 10 - A molecule of DNA contains two polymer strands...Ch. 10 - Name the three parts of every nucleotide.Ch. 10 - Prob. 3SQCh. 10 - A scientist inserts a radioactively labeled DNA...Ch. 10 - The nucleotide sequence of a DNA codon is GTA....Ch. 10 - Describe the process by which the information in a...Ch. 10 - Prob. 7SQCh. 10 - A geneticist finds that a particular mutation has...Ch. 10 - Scientists have discovered how to put together a...Ch. 10 - How do some viruses reproduce without ever having...
Ch. 10 - HIV requires an enzyme called _____ to convert its...Ch. 10 - Prob. 12IMTCh. 10 - Prob. 13IMTCh. 10 - Prob. 14IMTCh. 10 - A cell containing a single chromosome is placed in...Ch. 10 - In a classic 1952 experiment, biologists Alfred...Ch. 10 - Prob. 17PSCh. 10 - Prob. 18BSCh. 10 - Prob. 19BSCh. 10 - Flu vaccines have been shown to be safe, are very...
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- DNA replication is called semi- conservative because of the two new strands of DNA is old DNA from the original DNA molecule and is new DNA. Answers to choose from: 1) Half 2) All 3) Nonearrow_forward(Select one answer from each dropdown menu:) DNA replication uses as templates to make an Choose one: GAUDIe copy of a DNA molecule. complementa DNA replication is known exact molecule has 1 original stChoose one: 1 new strand of DNA. This ensures the conservation of genetic information. because each new DNA (Select one answer from each dropdown menu: ) In mitosis, the goal is to get cells that are genetically Choose one: This process is used to make Choose one: Match the following Mitosis stages to what happens Prophase Metaphase Anaphase Telophase a. sister chromatids pull apart to opposite ends of cell b. chromosomes line up at the equator of the cell c. Nuclear envelope reforms and chromosome loosen d. nuclear envelope disappears, chromosoměs a. condense During what phase does the cytoplasm divide? (Select one answer from dropdown menu:) Choose one: (Select one answer from each dropdown menu and fill in the blank:) In meiosis, the goal is to get cells that are genetically Choose…arrow_forwardTwo important proteins in DNA replication are (select two): Cdx2 Cdt2 Cdc6 Cdc6 Cdt1 Cdc5arrow_forward
- Which of the following enzymes can break, and rejoin, phosphodiester bonds during the normal DNA replication process in the chromosomes of E. coli cells? single-stranded binding proteins RNA polymerase topoisomerase DNA helicase DNA ligasearrow_forwardFill in the blank spaces below with the most appropriate terms. The word bank is not provided. DNA replication in bacterium Escherichia coli begins at a site in the DNA called At the replication fork, the strand is synthesized continuously while the strand is synthesized discontinuously (in fragments). The new DNA strand, which is synthesized discontinuously, initially consists of short DNA pieces that are called A short RNA primer at the beginning of each of the DNA fragments is synthesized by an enzyme called and this RNA primer is later removed by the enzyme called using its activity. Single-strand breaks (nicks) that are left behind in this process are sealed by the enzyme called A Moving to another question w!l save this resporse Quebon 4 Inarrow_forwardThere are 6 parts to this question: This is a follow up to the prior question regarding the replication of the DNA strand below. The DNA strand is here for your reference and you do not need to do anything with or to it. TC GATATCGG AGCTATAGCC c) what enzyme separated the parental DNA template strands, d) what bonds were broken? e) what enzyme replicates DNA f) before DNA can be replicated/copied, what must be laid down to allow the enzyme in "e" to replicated the DNA (be specific)? g) our DNA is replicated in many "pieces", what enzyme connects these many "pieces" into one continuous DNA strand that becomes the sister chromatid? h) during what specific phase of the cell cycle does this DNA replication process occur? (This should be a review question from last topics we covered).arrow_forward
- Which enzymes are involved in DNA replications? There are multiple answers. Helicase DNA polymerase RNA polymerase DNA ligase single strand binding proteins peptidyl transferase σ unit release factorsarrow_forwardIf mutations occur in DNA, there are several mechanisms by which a cell can repair the defect. One method that can be used is nucleotide extision repair. All of the following characterize nucleotide excision repair, except: DNA ligase will replace the excised DNA and seal the backbone Enzymes can cleave the damaged region DNA can be opened to form a bubble so proteins can access the damaged DNA Can identify thymine dimersarrow_forwardOne strand of a single DNA helix is labeled red while the other strand of the same DNA helix is labeled blue. This double helix DNA is replicated through the process of semi-conservative replication. Note that a completely newly synthesized strand of DNA will be white. After three rounds of DNA replication, how many all-white DNA (both strands are white) will there be? Explain your reasoning.arrow_forward
- Identify if the statement is correct or incorrect, "DNA ligase separates the two strands of the relaxed DNA helix, the point of separation is the replication fork."arrow_forwardThe image shows a replication fork with template DNA strands, new DNA strands, and some replication proteins. Label the mage by moving the terms or descriptive phrases to the appropriate targets. lagging strand (or Okazaki fragment) Answer Bank protein that synthesizes RNA primer DnaB helicase DNA gyrase (topoisomerase)arrow_forwardA plasmid is a DNA double helix in which the ends of each of the strands of nucleotides are attached to each other, forming a circular DNA molecule. 1) True 2) Falsearrow_forward
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