SlideShare a Scribd company logo
1 of 1
Download to read offline
The four bases in DNA are Adenine, Guanine, Cytosine and Thymine. Adenine
and Guanine are Purines (2 ring structure). Cytosine and Thymine are Pyrimidines (single ring
structure). Adenine pairs with Thymine through 2 hydrogen bonds. Guanine pairs with Cytosine
through 3 hydrogen bonds. Since all base pairs contain a Purine and a Pyrimidine, they have the
same molecular dimensions.
Solution
The four bases in DNA are Adenine, Guanine, Cytosine and Thymine. Adenine
and Guanine are Purines (2 ring structure). Cytosine and Thymine are Pyrimidines (single ring
structure). Adenine pairs with Thymine through 2 hydrogen bonds. Guanine pairs with Cytosine
through 3 hydrogen bonds. Since all base pairs contain a Purine and a Pyrimidine, they have the
same molecular dimensions.

More Related Content

More from anujmkt

What is Network security, or Securiing your data Through Network,N.pdf
What is Network security, or Securiing your data Through Network,N.pdfWhat is Network security, or Securiing your data Through Network,N.pdf
What is Network security, or Securiing your data Through Network,N.pdfanujmkt
 
TrueClay it the important of soil for holding plant nutrients in t.pdf
TrueClay it the important of soil for holding plant nutrients in t.pdfTrueClay it the important of soil for holding plant nutrients in t.pdf
TrueClay it the important of soil for holding plant nutrients in t.pdfanujmkt
 
The statement is FalseOnly single target target agents are sunject.pdf
The statement is FalseOnly single target target agents are sunject.pdfThe statement is FalseOnly single target target agents are sunject.pdf
The statement is FalseOnly single target target agents are sunject.pdfanujmkt
 
The reactants along with the oxidation states are Zn = 0 CuSO4.pdf
The reactants along with the oxidation states are Zn = 0 CuSO4.pdfThe reactants along with the oxidation states are Zn = 0 CuSO4.pdf
The reactants along with the oxidation states are Zn = 0 CuSO4.pdfanujmkt
 
The scanner performs lexical analysis of a precise program (in our c.pdf
The scanner performs lexical analysis of a precise program (in our c.pdfThe scanner performs lexical analysis of a precise program (in our c.pdf
The scanner performs lexical analysis of a precise program (in our c.pdfanujmkt
 
Solution Pseudoextinction refers to- D) a species evolving to t.pdf
Solution Pseudoextinction refers to- D) a species evolving to t.pdfSolution Pseudoextinction refers to- D) a species evolving to t.pdf
Solution Pseudoextinction refers to- D) a species evolving to t.pdfanujmkt
 
Share Holders Equity = Current Assets + Net Fixed Assets - Current.pdf
Share Holders Equity = Current Assets + Net Fixed Assets - Current.pdfShare Holders Equity = Current Assets + Net Fixed Assets - Current.pdf
Share Holders Equity = Current Assets + Net Fixed Assets - Current.pdfanujmkt
 
The correct answer for m_1=2 is 2,3 for lSolutionThe corre.pdf
The correct answer for m_1=2 is 2,3 for lSolutionThe corre.pdfThe correct answer for m_1=2 is 2,3 for lSolutionThe corre.pdf
The correct answer for m_1=2 is 2,3 for lSolutionThe corre.pdfanujmkt
 
solimportance for an organization to implement an enterprise system.pdf
solimportance for an organization to implement an enterprise system.pdfsolimportance for an organization to implement an enterprise system.pdf
solimportance for an organization to implement an enterprise system.pdfanujmkt
 
We use the complementation principle. Clearly the.pdf
                     We use the complementation principle. Clearly the.pdf                     We use the complementation principle. Clearly the.pdf
We use the complementation principle. Clearly the.pdfanujmkt
 
right idea but numbers are wrong all over the placeSolution.pdf
right idea but numbers are wrong all over the placeSolution.pdfright idea but numbers are wrong all over the placeSolution.pdf
right idea but numbers are wrong all over the placeSolution.pdfanujmkt
 
Please follow the data and description EBNF In the stream of c.pdf
Please follow the data and description EBNF In the stream of c.pdfPlease follow the data and description EBNF In the stream of c.pdf
Please follow the data and description EBNF In the stream of c.pdfanujmkt
 
Program of sorting using shell sort #include stdio.h #de.pdf
 Program of sorting using shell sort  #include stdio.h #de.pdf Program of sorting using shell sort  #include stdio.h #de.pdf
Program of sorting using shell sort #include stdio.h #de.pdfanujmkt
 
The sample proportion falls between 0.4 and 0.6Solution The s.pdf
 The sample proportion falls between 0.4 and 0.6Solution The s.pdf The sample proportion falls between 0.4 and 0.6Solution The s.pdf
The sample proportion falls between 0.4 and 0.6Solution The s.pdfanujmkt
 
namespace MonthNamesGUI{public partial class Form1 Form{en.pdf
namespace MonthNamesGUI{public partial class Form1  Form{en.pdfnamespace MonthNamesGUI{public partial class Form1  Form{en.pdf
namespace MonthNamesGUI{public partial class Form1 Form{en.pdfanujmkt
 
+0.35, as the scatter is not showing any significant relationship to.pdf
+0.35, as the scatter is not showing any significant relationship to.pdf+0.35, as the scatter is not showing any significant relationship to.pdf
+0.35, as the scatter is not showing any significant relationship to.pdfanujmkt
 
Here ABE is one planeBCD is another perpendicular plane from the g.pdf
Here ABE is one planeBCD is another perpendicular plane from the g.pdfHere ABE is one planeBCD is another perpendicular plane from the g.pdf
Here ABE is one planeBCD is another perpendicular plane from the g.pdfanujmkt
 
For governments that implement GASB Statement No. 34, the fund finan.pdf
For governments that implement GASB Statement No. 34, the fund finan.pdfFor governments that implement GASB Statement No. 34, the fund finan.pdf
For governments that implement GASB Statement No. 34, the fund finan.pdfanujmkt
 
Ethical theories are often divided into three types -1) Consequent.pdf
Ethical theories are often divided into three types -1) Consequent.pdfEthical theories are often divided into three types -1) Consequent.pdf
Ethical theories are often divided into three types -1) Consequent.pdfanujmkt
 
D. The International Organization on Computer Evidence (IOCE) was ap.pdf
D. The International Organization on Computer Evidence (IOCE) was ap.pdfD. The International Organization on Computer Evidence (IOCE) was ap.pdf
D. The International Organization on Computer Evidence (IOCE) was ap.pdfanujmkt
 

More from anujmkt (20)

What is Network security, or Securiing your data Through Network,N.pdf
What is Network security, or Securiing your data Through Network,N.pdfWhat is Network security, or Securiing your data Through Network,N.pdf
What is Network security, or Securiing your data Through Network,N.pdf
 
TrueClay it the important of soil for holding plant nutrients in t.pdf
TrueClay it the important of soil for holding plant nutrients in t.pdfTrueClay it the important of soil for holding plant nutrients in t.pdf
TrueClay it the important of soil for holding plant nutrients in t.pdf
 
The statement is FalseOnly single target target agents are sunject.pdf
The statement is FalseOnly single target target agents are sunject.pdfThe statement is FalseOnly single target target agents are sunject.pdf
The statement is FalseOnly single target target agents are sunject.pdf
 
The reactants along with the oxidation states are Zn = 0 CuSO4.pdf
The reactants along with the oxidation states are Zn = 0 CuSO4.pdfThe reactants along with the oxidation states are Zn = 0 CuSO4.pdf
The reactants along with the oxidation states are Zn = 0 CuSO4.pdf
 
The scanner performs lexical analysis of a precise program (in our c.pdf
The scanner performs lexical analysis of a precise program (in our c.pdfThe scanner performs lexical analysis of a precise program (in our c.pdf
The scanner performs lexical analysis of a precise program (in our c.pdf
 
Solution Pseudoextinction refers to- D) a species evolving to t.pdf
Solution Pseudoextinction refers to- D) a species evolving to t.pdfSolution Pseudoextinction refers to- D) a species evolving to t.pdf
Solution Pseudoextinction refers to- D) a species evolving to t.pdf
 
Share Holders Equity = Current Assets + Net Fixed Assets - Current.pdf
Share Holders Equity = Current Assets + Net Fixed Assets - Current.pdfShare Holders Equity = Current Assets + Net Fixed Assets - Current.pdf
Share Holders Equity = Current Assets + Net Fixed Assets - Current.pdf
 
The correct answer for m_1=2 is 2,3 for lSolutionThe corre.pdf
The correct answer for m_1=2 is 2,3 for lSolutionThe corre.pdfThe correct answer for m_1=2 is 2,3 for lSolutionThe corre.pdf
The correct answer for m_1=2 is 2,3 for lSolutionThe corre.pdf
 
solimportance for an organization to implement an enterprise system.pdf
solimportance for an organization to implement an enterprise system.pdfsolimportance for an organization to implement an enterprise system.pdf
solimportance for an organization to implement an enterprise system.pdf
 
We use the complementation principle. Clearly the.pdf
                     We use the complementation principle. Clearly the.pdf                     We use the complementation principle. Clearly the.pdf
We use the complementation principle. Clearly the.pdf
 
right idea but numbers are wrong all over the placeSolution.pdf
right idea but numbers are wrong all over the placeSolution.pdfright idea but numbers are wrong all over the placeSolution.pdf
right idea but numbers are wrong all over the placeSolution.pdf
 
Please follow the data and description EBNF In the stream of c.pdf
Please follow the data and description EBNF In the stream of c.pdfPlease follow the data and description EBNF In the stream of c.pdf
Please follow the data and description EBNF In the stream of c.pdf
 
Program of sorting using shell sort #include stdio.h #de.pdf
 Program of sorting using shell sort  #include stdio.h #de.pdf Program of sorting using shell sort  #include stdio.h #de.pdf
Program of sorting using shell sort #include stdio.h #de.pdf
 
The sample proportion falls between 0.4 and 0.6Solution The s.pdf
 The sample proportion falls between 0.4 and 0.6Solution The s.pdf The sample proportion falls between 0.4 and 0.6Solution The s.pdf
The sample proportion falls between 0.4 and 0.6Solution The s.pdf
 
namespace MonthNamesGUI{public partial class Form1 Form{en.pdf
namespace MonthNamesGUI{public partial class Form1  Form{en.pdfnamespace MonthNamesGUI{public partial class Form1  Form{en.pdf
namespace MonthNamesGUI{public partial class Form1 Form{en.pdf
 
+0.35, as the scatter is not showing any significant relationship to.pdf
+0.35, as the scatter is not showing any significant relationship to.pdf+0.35, as the scatter is not showing any significant relationship to.pdf
+0.35, as the scatter is not showing any significant relationship to.pdf
 
Here ABE is one planeBCD is another perpendicular plane from the g.pdf
Here ABE is one planeBCD is another perpendicular plane from the g.pdfHere ABE is one planeBCD is another perpendicular plane from the g.pdf
Here ABE is one planeBCD is another perpendicular plane from the g.pdf
 
For governments that implement GASB Statement No. 34, the fund finan.pdf
For governments that implement GASB Statement No. 34, the fund finan.pdfFor governments that implement GASB Statement No. 34, the fund finan.pdf
For governments that implement GASB Statement No. 34, the fund finan.pdf
 
Ethical theories are often divided into three types -1) Consequent.pdf
Ethical theories are often divided into three types -1) Consequent.pdfEthical theories are often divided into three types -1) Consequent.pdf
Ethical theories are often divided into three types -1) Consequent.pdf
 
D. The International Organization on Computer Evidence (IOCE) was ap.pdf
D. The International Organization on Computer Evidence (IOCE) was ap.pdfD. The International Organization on Computer Evidence (IOCE) was ap.pdf
D. The International Organization on Computer Evidence (IOCE) was ap.pdf
 

Recently uploaded

Observing-Correct-Grammar-in-Making-Definitions.pptx
Observing-Correct-Grammar-in-Making-Definitions.pptxObserving-Correct-Grammar-in-Making-Definitions.pptx
Observing-Correct-Grammar-in-Making-Definitions.pptxAdelaideRefugio
 
e-Sealing at EADTU by Kamakshi Rajagopal
e-Sealing at EADTU by Kamakshi Rajagopale-Sealing at EADTU by Kamakshi Rajagopal
e-Sealing at EADTU by Kamakshi RajagopalEADTU
 
The Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDFThe Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDFVivekanand Anglo Vedic Academy
 
Graduate Outcomes Presentation Slides - English (v3).pptx
Graduate Outcomes Presentation Slides - English (v3).pptxGraduate Outcomes Presentation Slides - English (v3).pptx
Graduate Outcomes Presentation Slides - English (v3).pptxneillewis46
 
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjj
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjjStl Algorithms in C++ jjjjjjjjjjjjjjjjjj
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjjMohammed Sikander
 
Trauma-Informed Leadership - Five Practical Principles
Trauma-Informed Leadership - Five Practical PrinciplesTrauma-Informed Leadership - Five Practical Principles
Trauma-Informed Leadership - Five Practical PrinciplesPooky Knightsmith
 
FICTIONAL SALESMAN/SALESMAN SNSW 2024.pdf
FICTIONAL SALESMAN/SALESMAN SNSW 2024.pdfFICTIONAL SALESMAN/SALESMAN SNSW 2024.pdf
FICTIONAL SALESMAN/SALESMAN SNSW 2024.pdfPondicherry University
 
Contoh Aksi Nyata Refleksi Diri ( NUR ).pdf
Contoh Aksi Nyata Refleksi Diri ( NUR ).pdfContoh Aksi Nyata Refleksi Diri ( NUR ).pdf
Contoh Aksi Nyata Refleksi Diri ( NUR ).pdfcupulin
 
male presentation...pdf.................
male presentation...pdf.................male presentation...pdf.................
male presentation...pdf.................MirzaAbrarBaig5
 
An overview of the various scriptures in Hinduism
An overview of the various scriptures in HinduismAn overview of the various scriptures in Hinduism
An overview of the various scriptures in HinduismDabee Kamal
 
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUMDEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUMELOISARIVERA8
 
PSYPACT- Practicing Over State Lines May 2024.pptx
PSYPACT- Practicing Over State Lines May 2024.pptxPSYPACT- Practicing Over State Lines May 2024.pptx
PSYPACT- Practicing Over State Lines May 2024.pptxMarlene Maheu
 
SURVEY I created for uni project research
SURVEY I created for uni project researchSURVEY I created for uni project research
SURVEY I created for uni project researchCaitlinCummins3
 
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文中 央社
 
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptxCOMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptxannathomasp01
 
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...Nguyen Thanh Tu Collection
 
Basic Civil Engineering notes on Transportation Engineering & Modes of Transport
Basic Civil Engineering notes on Transportation Engineering & Modes of TransportBasic Civil Engineering notes on Transportation Engineering & Modes of Transport
Basic Civil Engineering notes on Transportation Engineering & Modes of TransportDenish Jangid
 
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...Nguyen Thanh Tu Collection
 

Recently uploaded (20)

Observing-Correct-Grammar-in-Making-Definitions.pptx
Observing-Correct-Grammar-in-Making-Definitions.pptxObserving-Correct-Grammar-in-Making-Definitions.pptx
Observing-Correct-Grammar-in-Making-Definitions.pptx
 
e-Sealing at EADTU by Kamakshi Rajagopal
e-Sealing at EADTU by Kamakshi Rajagopale-Sealing at EADTU by Kamakshi Rajagopal
e-Sealing at EADTU by Kamakshi Rajagopal
 
The Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDFThe Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDF
 
Graduate Outcomes Presentation Slides - English (v3).pptx
Graduate Outcomes Presentation Slides - English (v3).pptxGraduate Outcomes Presentation Slides - English (v3).pptx
Graduate Outcomes Presentation Slides - English (v3).pptx
 
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjj
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjjStl Algorithms in C++ jjjjjjjjjjjjjjjjjj
Stl Algorithms in C++ jjjjjjjjjjjjjjjjjj
 
Trauma-Informed Leadership - Five Practical Principles
Trauma-Informed Leadership - Five Practical PrinciplesTrauma-Informed Leadership - Five Practical Principles
Trauma-Informed Leadership - Five Practical Principles
 
FICTIONAL SALESMAN/SALESMAN SNSW 2024.pdf
FICTIONAL SALESMAN/SALESMAN SNSW 2024.pdfFICTIONAL SALESMAN/SALESMAN SNSW 2024.pdf
FICTIONAL SALESMAN/SALESMAN SNSW 2024.pdf
 
Contoh Aksi Nyata Refleksi Diri ( NUR ).pdf
Contoh Aksi Nyata Refleksi Diri ( NUR ).pdfContoh Aksi Nyata Refleksi Diri ( NUR ).pdf
Contoh Aksi Nyata Refleksi Diri ( NUR ).pdf
 
male presentation...pdf.................
male presentation...pdf.................male presentation...pdf.................
male presentation...pdf.................
 
Mattingly "AI and Prompt Design: LLMs with NER"
Mattingly "AI and Prompt Design: LLMs with NER"Mattingly "AI and Prompt Design: LLMs with NER"
Mattingly "AI and Prompt Design: LLMs with NER"
 
An overview of the various scriptures in Hinduism
An overview of the various scriptures in HinduismAn overview of the various scriptures in Hinduism
An overview of the various scriptures in Hinduism
 
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUMDEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
 
PSYPACT- Practicing Over State Lines May 2024.pptx
PSYPACT- Practicing Over State Lines May 2024.pptxPSYPACT- Practicing Over State Lines May 2024.pptx
PSYPACT- Practicing Over State Lines May 2024.pptx
 
Supporting Newcomer Multilingual Learners
Supporting Newcomer  Multilingual LearnersSupporting Newcomer  Multilingual Learners
Supporting Newcomer Multilingual Learners
 
SURVEY I created for uni project research
SURVEY I created for uni project researchSURVEY I created for uni project research
SURVEY I created for uni project research
 
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
 
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptxCOMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
 
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
 
Basic Civil Engineering notes on Transportation Engineering & Modes of Transport
Basic Civil Engineering notes on Transportation Engineering & Modes of TransportBasic Civil Engineering notes on Transportation Engineering & Modes of Transport
Basic Civil Engineering notes on Transportation Engineering & Modes of Transport
 
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
TỔNG HỢP HƠN 100 ĐỀ THI THỬ TỐT NGHIỆP THPT TOÁN 2024 - TỪ CÁC TRƯỜNG, TRƯỜNG...
 

The four bases in DNA are Adenine, Guanine, Cytos.pdf

  • 1. The four bases in DNA are Adenine, Guanine, Cytosine and Thymine. Adenine and Guanine are Purines (2 ring structure). Cytosine and Thymine are Pyrimidines (single ring structure). Adenine pairs with Thymine through 2 hydrogen bonds. Guanine pairs with Cytosine through 3 hydrogen bonds. Since all base pairs contain a Purine and a Pyrimidine, they have the same molecular dimensions. Solution The four bases in DNA are Adenine, Guanine, Cytosine and Thymine. Adenine and Guanine are Purines (2 ring structure). Cytosine and Thymine are Pyrimidines (single ring structure). Adenine pairs with Thymine through 2 hydrogen bonds. Guanine pairs with Cytosine through 3 hydrogen bonds. Since all base pairs contain a Purine and a Pyrimidine, they have the same molecular dimensions.