Podcast
Questions and Answers
Which term describes the arrangement of DNA strands running in opposite directions?
Which term describes the arrangement of DNA strands running in opposite directions?
- Parallel
- Collinear
- Orthogonal
- Antiparallel (correct)
What is the spacing between base-pairs in DNA?
What is the spacing between base-pairs in DNA?
- 0.34 nm (correct)
- 0.25 nm
- 0.68 nm
- 1.0 nm
How many bases are typically present per turn in the right-handed helix formation of DNA?
How many bases are typically present per turn in the right-handed helix formation of DNA?
- 10 bases (correct)
- 20 bases
- 15 bases
- 5 bases
Where are nitrogenous bases more accessible in the DNA molecule?
Where are nitrogenous bases more accessible in the DNA molecule?
In what direction does one polynucleotide strand run in DNA?
In what direction does one polynucleotide strand run in DNA?
How does the right-handed helix formation of DNA affect DNA-protein interactions?
How does the right-handed helix formation of DNA affect DNA-protein interactions?
What is the main function of DNA as described in the text?
What is the main function of DNA as described in the text?
Why were scientists originally unsure whether DNA or proteins encoded genetic information?
Why were scientists originally unsure whether DNA or proteins encoded genetic information?
What property of DNA made it ideal for storing and transmitting genetic information?
What property of DNA made it ideal for storing and transmitting genetic information?
Why were scientists led to believe that proteins might be the genetic material?
Why were scientists led to believe that proteins might be the genetic material?
Which property of proteins made them less than ideal for storing and transmitting genetic information?
Which property of proteins made them less than ideal for storing and transmitting genetic information?
What function was crucial for DNA to maintain genetic variation?
What function was crucial for DNA to maintain genetic variation?
What technique did Maurice Wilkins and Rosalind Franklin use to study the molecular structure of DNA?
What technique did Maurice Wilkins and Rosalind Franklin use to study the molecular structure of DNA?
What critical piece of evidence did Watson and Crick use to determine the structure of DNA?
What critical piece of evidence did Watson and Crick use to determine the structure of DNA?
Why did Watson and Crick realize that the bases in DNA could not pair like with like?
Why did Watson and Crick realize that the bases in DNA could not pair like with like?
In DNA, which base pairs have three hydrogen bonds between them?
In DNA, which base pairs have three hydrogen bonds between them?
What observation by Chargaff influenced Watson and Crick's correct base pairing deduction?
What observation by Chargaff influenced Watson and Crick's correct base pairing deduction?
What technique did Watson and Crick use to deduce the width of the helix and the spacing of the nitrogenous bases in DNA?
What technique did Watson and Crick use to deduce the width of the helix and the spacing of the nitrogenous bases in DNA?
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