Concept explainers
Interpretation:
The genetic material of viruses is to be stated.
Concept introduction:
Deoxyribonucleic acid is made up of two chains that form a double helix structure. DNA is used in the development, growth, reproduction, and functioning of a living organism.
Ribonucleic acid is a
Answer to Problem 1RE
Solution: Some viruses contain DNA and some viruses contain RNA and, in a few cases, the viral genome is single-stranded.
Explanation of Solution
Viruses are nanoparticles, which are made up of
DNA and RNA are the core of the genetic material of viruses and, in some cases, the nucleic acid of the virus is single stranded or double stranded.
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Chapter 14 Solutions
Biochemistry
- REFLECT AND APPLY Some viruses can undergo lysis or lysogeny even in the same host. What might be a reason for this? Under what conditions might the virus favor the one strategy over the other?arrow_forwardREFLECT AND APPLY Your book contains about 2 million characters (letters, spaces, and punctuation marks). If you could type with the accuracy with which the prokaryote E. coli incorporates, proofreads, and repairs bases in replication (about one uncorrected error in 109to1010 bases), how many such books would you have to type before an uncorrected error is permitted? (Assume that the error rate is one in 1010 bases.)arrow_forwardRECALL What is the difference between miRNA and siRNA?arrow_forward
- REFLECT AND APPLY In the MeselsonStahl experiment that established the semiconservative nature of DNA replication, the extraction method produced short fragments of DNA. What sort of results might have been obtained with longer pieces of DNA?arrow_forwardREFLECT AND APPLY What is the complete base composition of a double-stranded eukaryotic DNA that contains 22% guanine?arrow_forwardREFLECT AND APPLY What difficulties arise in the polymerase chain reaction if there is contamination of the DNA that is to be copied?arrow_forward
- REFLECT AND APPLY (a) Eukaryotic DNA replication is more complex than prokaryotic replication. Give one reason why this should be so. (b) Why might eukaryotic cells need more kinds of DNA polymerases than bacteria?arrow_forwardRECALL What is blue/white screening? What is the key feature of a plasmid that is used for it?arrow_forwardREFLECT AND APPLY Give the DNA sequence for the template strand that gives rise to the following sequence gel, prepared using the Sanger method with a radioactive label at the 5' end of the primer.arrow_forward
- RECALL What are the main procedures involved in a western blot?arrow_forwardREFLECT AND APPLY Is the following statement true or false? Why? The flow of genetic information in the cell is always DNARNAprotein.arrow_forwardREFLECT AND APPLY E. coli incorporates deoxyribonucleotides into DNA at a rate of 250 to 1000 bases per second. Using the higher value, translate this into typing speed in words per minute. (Assume five characters per word, using the typing analogy from Question 36.)arrow_forward
- BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage Learning