Which of the following is NOT true of deoxyribonucleic acid (DNA)? A. None of the other four answers (all are true of DNA) B. Each DNA nucleotide contains the sugar ribose, phosphate, and one of the following nitrogenous bases: adenine, uracil, guanine, or cytosine C. Stores genetic information that can be expressed within a bacterial cell, transferred “vertically” to offspring cells, or “horizontally” to other recipient cells D. Found as a circular molecule in bacteria, either as chromosomes or plasmids E. Serves as a template for the transcription of mRNA

Which of the following is NOT true of deoxyribonucleic acid (DNA)? A. None of the other four answers (all are true of DNA) B. Each DNA nucleotide contains the sugar ribose, phosphate, and one of the following nitrogenous bases: adenine, uracil, guanine, or cytosine C. Stores genetic information that can be expressed within a bacterial cell, transferred “vertically” to offspring cells, or “horizontally” to other recipient cells D. Found as a circular molecule in bacteria, either as chromosomes or plasmids E. Serves as a template for the transcription of mRNA

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter9: Molecular Biology

Section: Chapter Questions

Problem 2RQ: Which of the following does cytosine pair with? a. guanine b. thymine c. adenine d. a pyrimidine

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Similar questions

Select TRUE or FALSE for each of the following statements: 1. Only one of the three phosphate groups present in each nucleotide precursor remains present in a DNA polymer. 2. Starch and cellulose are alike in that both contain sugars bonded together in identical ways. 3. The coding strand of DNA is complementary in sequence to the corresponding MRNA. 4. Ribosomal RNA (rRNA) is synthesised by ribosomes in the process of translation. 5. Polyribosomes speed up the rate of transcription.
TRUE OR FALSE a) The 2 chains composing one double helix run in opposite directions; they are antiparallel (one is 5’->3’ and the other 3’->5’). b) DNA molecules can perform their function in replication and transcription as long as the hydrogen bonds between the bases remain intact.
A segment of DNA containing 20 base pairs includes 7 guanine residues. How many adenine residues are in the segment? How many uracil residues are in the segment?
2) When DNA is placed in distilled water, which is pH 7.0, it denatures (i.e., the two strands separate). The pH inside a cell is generally 7.2-7.5, depending on the organism, but DNA is generally double-stranded under physiological conditions. Briefly explain, in your own words, why DNA denatures when placed in distilled water but not when it is inside a cell. [Reminder: the pKa for the phosphate groups in the sugar-phosphate backbone of a strand of DNA is 2.14]
Hydrolysis of the N-glycosyl bond between deoxyribose and a purine base in DNA creates an apurinic (AP) site. An AP site is more thermodynamically destabilizing to a DNA molecule than is a mismatched base pair. Examine the structure of an AP site. HN H₂N N 0 Guanine -O-P-O-CH₂O. H₂N H HN H H H Hod H ofo -0- Guanosine residue (in DNA) -0-CH₂ H H H Apurinic residue H OH H
The alkaline hydrolysis of pAUGCAGC oligonucleotide produces: O A. Uridine 2'-monophosphate, uridine 3'-monophosphate, cytosine 2'-monophosphate O B. Adenosine 2'-monophosphate, adenosine 3'-monophosphate, adenosine 21,5'-bisphosphate OC. Guanosine 2'-monophosphate, guanosine 3'-monophosphate, cytosine 3'-monophosphate O D. Cytidine 3'-monophosphate, guanosine 2'-monophosphate, adenine 2'-monophosphate O E. Adenine 3,5'-bisphosphate, guanine 2,5'-bisphosphate, uridine 2'-monophosphate O F. Uridine 2'-monophosphate, uridine 3'-monophosphate, guanine 3'-monophosphate
Use the following information to answer the next question. The DNA strand shown below is thought to contain the genetic code for part of an enzyme B-galactosidase which is involved in lactose metabolism. (Read the DNA beginning at the left.) -A-T-A-T-G-G-G-G-C-A-T-G The second amino acid coded from the section of DNA for B-galactosidase is Select one: a. thymine b. tryptophan c. serine d. threonine
In an attempt to understand whether viruses rely on proteins or nucleic acids to transmit their genetic information into their host cells, scientists were able to track the movement of phosphorus and nitrogen from the virus to its host cell. Which of the following describes the most likely conclusion from this observation? A B с D The molecule that is transmitted by the virus is a protein since proteins contain nitrogen but nucleic acids do not. The molecule that is transmitted by the virus is a protein since proteins contain phos- phorus but nucleic acids do not. The molecule that is transmitted by the virus is a nucleic acid since nucleic acids contain phosphorus but proteins do not. The molecule that is transmitted by the virus is a nucleic acid since nucleic acids contain nitrogen but proteins do not.
Label each statement about the polynucleotide ATGGCG as true or false. a. The polynucleotide has six nucleotides. b. The polynucleotide contains six phosphodiester linkages. c. The nucleotide at the 5 ' end contains the base guanine. d. The nucleotide at the 3 ' end contains the base guanine. e. The polynucleotide could be part of a DNA molecule. f. The polynucleotide could be part of an RNA molecule.
Cytosine makes up 42% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be thymine? 58% 8% 16% 42%
Arrange the following: Formation of nucleoside which is the joining of nitrogen base and a 5-carbon sugar. Condensation reaction between the phosphoric acid and the alcohol group on carbon number 5. The nucleotides are covalently linked through 5’ phosphate-group to the 3’- hydroxyl group of the next nucleotide creating a phosphodiester linkage. a. None of the choices b. II, I, III c. I, II, III d. II, III, I
Which of the following does cytosine pair with? a. guanine b. thymine c. adenine d. a pyrimidine