Campbell Biology: Conc. and Conn. - Access
8th Edition
ISBN: 9780321946850
Author: Reece
Publisher: PEARSON
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Chapter 10, Problem 9TYK
A cell containing a single chromosome is placed in a medium containing radioactive phosphate so that any new DNA strands formed by
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A 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.
DNA replication involves a series of steps, including initiation, making primers, extension, and connecting DNA fragments. The cell uses different enzymes in a particular order to accomplish these steps. Which of the following represents the correct general order of enzyme use? A. DNA polymerases, helicase, primase, ligase B. Helicase, ligase, primase, DNA polymerases C. Helicase, primase, DNA polymerases, ligase D. Primase, helicase, DNA polymerases, ligase
When chromatin is treated with non-specific nucleases, what is the length of the resulting pieces of DNA
Chapter 10 Solutions
Campbell Biology: Conc. and Conn. - Access
Ch. 10 - Check your understanding of the flow of genetic...Ch. 10 - Which of the following correctly ranks the...Ch. 10 - Describe the process of DNA replication: the...Ch. 10 - What is the name of the process that produces RNA...Ch. 10 - Scientists have discovered how to put together a...Ch. 10 - A geneticist found that a particular mutation had...Ch. 10 - Describe the process by which the information in a...Ch. 10 - The nucleotide sequence of a DNA codon is GTA. A...Ch. 10 - A cell containing a single chromosome is placed in...Ch. 10 - The base sequence of the gene coding for a short...
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- Each cell of the human body contains 46 chromosomes. How many DNA molecules does this statement represent? How many different types of DNA molecules does it represent?arrow_forwardIn eukaryotes, replication starts more or less simultaneously at multiple points of origin along a chromosome. What pattern of radioactivity would be found after briefly exposing to radioactive adenine a cell that is just beginning to replicate, and then quickly replacing the radioactive with nonradioactive adenine? many short sections of radioactive DNA one radioactive section of DNA starting at one particular end of the chromosomes many short radioactive strands of DNA in the leading strands only many short radioactive sections of DNA in the lagging strands only no radioactive sections in the DNAarrow_forwardAfter 3 rounds of replication, what percent of the DNA molecules will contain only 15N? You take a sample of bacteria with DNA that contains only 14N and allow them to replicate in a medium that contains only 15N. After 3 rounds of replication, what percent of the DNA molecules will contain only 15N? Enter your answer as a whole number without the percent sign. For example, 5% would be entered as 5 and 37% would be entered as 37.arrow_forward
- What is the first step in the process of DNA replication? Which enzyme is responsible for “unzipping” the DNA double helix? Which enzyme is responsible for facilitating the hydrogen bonding between nucleotides in a new DNA molecule? Which enzyme is responsible for creating the covalent bonds that connect the sugar-phosphate backbone of the new DNA molecules?arrow_forwardFor double-stranded DNA, which of the following statements is true? a) A = C b) A = G and C = T c) A + C = G + T d) A + T = G + C e) B and C are truearrow_forwardIf the DNA of one human cell is stretched out, it would be almost 6 feet long and contain over three billion base pairs. How does all this fit into the nucleus of one cell?arrow_forward
- After the DNA is finished making a copy of itself, the chromosomes are in the shape of what letter of the alphabet – I or X?arrow_forwardEach peak in a chromatogram corresponds to: A fluorescent ddNTP which has been released from the DNA fragment resulting in the termination of synthesis A fluorescent dNTP which has been released from the DNA fragment resulting in the termination of synthesis A fluorescent dNTP which has been incorporated into the DNA fragment resulting in the termination of synthesis. A fluorescent ddNTP which has been incorporated into the DNA fragment resulting in the termination of synthesisarrow_forwardWhich of the following enzymes is responsible for ensuring that genetic material at the end of the chromosome is not lost during DNA replication? a. Helicase b. DNA Polymerase c. Telomerase d. DNA Ligase e. Primasearrow_forward
- Which of the following statements are TRUE?I. DNA replication is a semiconservative process wherein the two resulting double helices consist of one new strand and one parental strand.II. The DNA strand that is used to make a complementary daughter strand is called the parental strand.III. The precursor of each new nucleotide in the DNA strand is a deoxynucleoside 3′-triphosphate.IV. The incoming nucleotide always attaches to 5′-phosphate of the previously added nucleotidearrow_forwardWhich of the following statements are TRUE?I. DNA replication is a semiconservative process wherein the two resulting double helices consist of one new strand and one parental strand.II. The DNA strand that is used to make a complementary daughter strand is called the parental strand.III. The precursor of each new nucleotide in the DNA strand is a deoxynucleoside 3′-triphosphate.IV. The incoming nucleotide always attaches to 5′-phosphate of the previously added nucleotide a. I only b. II only c. I and IV d. III and IVarrow_forwardPlace the following steps of DNA replication and repair in the correct order by numbering them from 1 to 5. a. A template strand begins to be replicated. b. If the incorrect base is not identified and replaced, it remains as a point mutation in the DNA. c. DNA polymerase identifies and replaces most incorrect bases with the correct base, complementary to the base on the template strand. d. An incorrect base is added to the growing strand of DNA. e. Proteins identify and replace any incorrect bases missed by DNA polymerase.arrow_forward
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