Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 9, Problem 5TY
Of the following statements, which is correct when considering the process of
- New DNA molecules are composed of two completely new strands.
- New DNA molecules are composed of one strand from the old molecule and one new strand.
- New DNA molecules are composed of strands that are a mixture of sections from the old molecule and sections that are new.
- None of the above are correct.
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Students have asked these similar questions
Which of the following regarding DNA replication is FALSE.
Replication of DNA is highly regulated.
DNA is the only biomolecule that can be replicated.
Replication is an amazingly complex process: it is amazing that can occur in a
physiologically relevant time frame.
The fact that DNA can be replicated allows it to serve as the genetic material.
The progeny receive one strand that originated from the parent and one newly
synthesized strand.
All the following statements about DNA are true, EXCEPT:
O DNA is a double-helix, consisting of a sugar-phosphate backbone.
O DNA is made up on nucleotides, which consist of one sugar, one phosphate, and one base.
O DNA consists of 4 bases - adenine, uracil, cytosine, and guanine.
The two main functions of DNA are to replicate itself and to create proteins (by providing the template for protein synthesis).
O The sugar in DNA is deoxyribose.
Which of the following best describes the process of DNA replication?
(type 1, 2 or 3 in the blank)
conservative model
semi-conservative model
dispersive model
The model that best describes DNA replication essentially means
the DNA is kept intact and a copy is made by enzymes
the DNA is separated and a new daughter copy is paired to each parental strand
the DNA is dispersed into small nucleotide segments and copied pieces are inserted into the gaps
Chapter 9 Solutions
Principles of Biology
Ch. 9.1 - Look ahead to Figure 17.10. How does bacterial...Ch. 9.1 - Prob. 1TYKCh. 9.2 - Prob. 1CCCh. 9.2 - Prob. 2CCCh. 9.2 - Prob. 3CCCh. 9.2 - A nucleotide composed of deoxyribose, phosphate,...Ch. 9.2 - Prob. 2TYKCh. 9.2 - Prob. 3TYKCh. 9.3 - Prob. 1TYKCh. 9.3 - To determine the structure of DNA, Watson and...
Ch. 9.4 - Prob. 1CCCh. 9.4 - Prob. 1TYKCh. 9.4 - Prob. 2TYKCh. 9.5 - Prob. 1CCCh. 9.5 - Prob. 1TYKCh. 9.5 - Prob. 2TYKCh. 9.5 - Prob. 3TYKCh. 9.6 - Prob. 1CCCh. 9.6 - A nucleosome is composed of 146 bp or 147 bp of...Ch. 9.6 - After they have replicated and become compacted in...Ch. 9.6 - Prob. 1BCCh. 9.6 - Which of the following is the correct order for...Ch. 9 - What is/are the main component(s) of chromosomes?...Ch. 9 - Prob. 2TYCh. 9 - Prob. 3TYCh. 9 - Prob. 4TYCh. 9 - Of the following statements, which is correct when...Ch. 9 - Prob. 6TYCh. 9 - Prob. 7TYCh. 9 - Prob. 8TYCh. 9 - Prob. 9TYCh. 9 - The conversion of euchromatin into heterochromatin...Ch. 9 - What are the four criteria that the genetic...Ch. 9 - What are the key features of DNA that allow it to...Ch. 9 - PRINCIPLES A principle of bioloy is that structure...Ch. 9 - Prob. 1CBQCh. 9 - Prob. 2CBQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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 Ligasearrow_forwardA cell containing a single chromosome is placed in a medium containing radioactive phosphate, making a new DNA strand formed by DNA replication radioactive. The cell replicates its DNA and divides. Then the daughter cells replicate their DNA and divide, resulting in a total of four cells. Sketch the DNA molecules in all four cells, showing a normal DNA strand as a solid line and a radioactive DNA strand as a dashed line.arrow_forwardWhich of the following statements regarding the fidelity of DNA replication is true? DNA polymerase has a 3'-5' exonuclease activity that removes incorrectly paired nucleotides. The DNA polymerase active site is highly flexible and can easily 'fit' incorrectly paired incorporated nucleotides. I. DNA polymerase never makes an error in the nucleotide being incorporated. The stability of base pairing is not a factor in controlling the fidelity of nucleotide incorporation during replication. IV. DNA polymerase has evolved to make errors at a relatively high rate because this is what drives evolution. OV.arrow_forward
- 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_forwardWhich of the following statements is/are TRUE for DNA Replication? Two daughter DNAs are formed, each one contains an old and new strands. When the (parent) DNA strands unwind, the 3'→ 5' strand is the leading strand while the 5'→3' strand is the lagging strand. Requires dATP, dTTP, dGTP, dCTP and Mg2+ The replisome is the biological machine responsible in replicating DNA.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
- Which of the following statements is TRUE of BOTH DNA replication and DNA transcription? During the process, the DNA double helix is separated into single-stranded regions. An intermediate in the process is an RNA-DNA hybrid helix. During the process, only one single-stranded DNA region acts as a template. Amino acids are matched to a strand of DNA to form a new polymer.arrow_forwardDescribe how replication makes copies of DNA. Include the following: helicase polymerase primase and primer ligase leading strand lagging strand base pairing rule (a-t, c-g) nucelotide nucleus semiconservativearrow_forwardAs a result of DNA replication two DNA molecules come into existence. Why is it not correct to assert that two “new” DNA molecules are created? What is the name given to the process concerning that fact?arrow_forward
- Match each of the following terms with the one definition that best describes it. Any of the following: Uracil, Cytosine, Thymine, Adenine, Guanine ····· Closes "nicks" between DNA fragments, forming a covalent bond that joins the fragments together Lays down a short chain of nucleotides at the beginning of DNA replication Synthesizes mRNA from a DNA template Unwinds the DNA double helix during DNA replication Adds individual nucleotides to a growing DNA strand during DNA replication 1. RNA Polymerase 2. DNA Polymerase 3. Ligase 4. Primase 5. Helicase 6. Nitrogenous Basearrow_forwardSome Processes Involved in DNA Replication The replication origin is identified. DNA primase builds RNA primer. Okazaki fragments are spliced by DNA ligase. Helicases bind and uncoil the DNA double helix. RNA primer is the starting point for DNA polymerase. DNA replication ends at the telomere where DNA codes for termination. DNA polymerase adds complementary nucleotides in the 5' to 3' direction in short segments called Okazaki fragments. The sequence in which the events numbered above occur during DNA replication of the lagging strand is Answer, Answer, Answer, Answer, Answer, Answer, and Answer.arrow_forwardSome Processes Involved in DNA Replication The replication origin is identified. DNA primase builds RNA primer. Okazaki fragments are spliced by DNA ligase. Helicases bind and uncoil the DNA double helix. RNA primer is the starting point for DNA polymerase. DNA replication ends at the telomere where DNA codes for termination. DNA polymerase adds complementary nucleotides in the 5' to 3' direction in short segments called Okazaki fragments. The sequence in which the events numbered above occur during DNA replication of the lagging strand is:arrow_forward
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