Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 14.2, Problem 4SB
Summary Introduction
To review:
The percentage of C (cytosine) in the DNA molecule, if the percentage of A (adenine) in the double-stranded DNA molecule is given as 20.
Introduction:
The DNA (deoxyribonucleic acid) is the genetic material found in most of the organisms. It consists of two sugar-phosphate chains which run antiparallel to each other and nitrogenous groups which bind the two chains together. There are four nitrogenous bases present in the DNA, which are adenine (A), guanine (G), cytosine (C) and thymine (T).
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The percentage of cytosine in a double-stranded DNA molecule is 40%. What is the percentage of thymine?
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Chapter 14 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 14.1 - Prob. 1SBCh. 14.2 - Prob. 1SBCh. 14.2 - Prob. 2SBCh. 14.2 - Prob. 3SBCh. 14.2 - Prob. 4SBCh. 14.3 - What is the importance of complementary base...Ch. 14.3 - Why is a primer needed for DNA replication? How is...Ch. 14.3 - DNA polymerase III and DNA polymerase I are used...Ch. 14.3 - Prob. 4SBCh. 14.4 - Why is a proofreading mechanism important for DNA...
Ch. 14 - Working on the Amazon River, a biologist isolated...Ch. 14 - Prob. 2TYKCh. 14 - Pyrimidines built from a single carbon ring are:...Ch. 14 - Which of the following statements about DNA...Ch. 14 - Which of the following statements about DNA is...Ch. 14 - Prob. 6TYKCh. 14 - Prob. 7TYKCh. 14 - Prob. 8TYKCh. 14 - Prob. 9TYKCh. 14 - Prob. 10TYKCh. 14 - Discuss Concepts Eukaryotic chromosomes can be...Ch. 14 - Prob. 12TYKCh. 14 - Prob. 13TYKCh. 14 - Discuss Concepts During replication, an error...Ch. 14 - Design an Experiment Design an experiment using...Ch. 14 - Prob. 16TYKCh. 14 - Prob. 1ITDCh. 14 - Prob. 2ITD
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- How many kilobases of the DNA strand below will code for the protein product?arrow_forwardIf a double stranded DNA HAS 20 PERCENT OF CYTOSINE, calculate the percent of adenine of adenine in the DNA?arrow_forwardIf a double-stranded DNA molecule is 22% G, what is the percentage of A, T, and C? Explain.arrow_forward
- If the ratio (A+G)/(T+ C) in one strand of DNA is 0.3, what is the same ratio in the complementary strand?arrow_forwardIn a segment of DNA consisting of 1000 nitrogen bases, 28% of which are thymine, how many bases are adenine, guanine, and cytosine?arrow_forwardIf a DNA double helix contains 28% T nucleotides, then what is the percentage of A nucleotides?arrow_forward
- The base composition for one of the strands of a DNA double helix is 19% A, 34% C, 28% G, and 19% T. What is the percent base composition for the other strand of the DNA double helix?arrow_forwardA double-stranded molecule of B DNA contains 340 nucleotides. How many complete turns occur in this double helix?arrow_forwardif the guanine content of certain segment of double-stranded DNA is 22% what is the adenine content?arrow_forward
- in the DNA of certain bacterial cells, 13% of the nucleotides are adenine. What are the percentages of the other nucleotides?arrow_forwardA circular, double-stranded DNA contains 2100 base pairs. The solution conditions are such that DNA has 10.5 bp/turn. (a) What is Lo for this DNA? (b) The DNA is found to have 12 left-handed superhelical turns. What is the superhelix density o?arrow_forwardThe amount of G plus C in an organism’s DNA is 64% of the total base content of that DNA. What are the percentages of A, T, G, and C?arrow_forward
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