मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

The fact that a purine base always paired through hydrogen bonds with a pyrimidine base leads to, in the DNA double helix ______. - Biology

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प्रश्न

The fact that a purine base always paired through hydrogen bonds with a pyrimidine base leads to, in the DNA double helix ______.

पर्याय

  • uniform width throughout DNA

  • uniform length in all DNA

  • the semiconservative nature

  • the antiparallel nature

MCQ
रिकाम्या जागा भरा
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उत्तर

The fact that a purine base always paired through hydrogen bonds with a pyrimidine base leads to, in the DNA double helix uniform width throughout DNA.

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Deoxyribonucleic Acid (DNA) - Structure of Polynucleotide Chain
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पाठ 6: Molecular Basis of Inheritance - MULTIPLE CHOICE QUESTIONS [पृष्ठ ३६]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 12
पाठ 6 Molecular Basis of Inheritance
MULTIPLE CHOICE QUESTIONS | Q 4. | पृष्ठ ३६

संबंधित प्रश्‍न

Which property of DNA double helix led Watson and Crick to hypothesise semi-conservative mode of DNA replication? Explain.


If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it?


In a DNA strand the nucleotides are linked together by ______.


Who amongst the following scientists had no contribution in the development of the double helix model for the structure of DNA?


Synthesis of DNA from RNA is explained by ______.


If 30 percent of an organism’s DNA is thymine, then ______.


By which bonds the purine and pyrimidine pairs of Complementary Strands of DNA held together?


There is no DNA in ______.


______ occurs in RNA instead of the nitrogenous base thymine found in DNA.


Which ratio is constant for DNA?


A peptide chain assumes secondary structure through the formation of ______.


In the polynucleotide chain of DNA, a nitrogenous base is linked to the -OH of ______


Retroviruses do not follow central Dogma. Comment.


During in vitro synthesis of DNA, a researcher used 2’, 3’ – dideoxy cytidine triphosphate as raw nucleotide in place of 2’-deoxy cytidine. What would be the consequence?


A short piece of DNA, having 20 base pairs, was analyzed to find the number of nucleotide bases in each of the polynucleotide strands. Some of the results are shown in the table.

  Number of nucleotide bases
  Adenine Cytosine Guanine Thymine
Strand 1 4 4    
Strand 2   5    

How many nucleotides containing Adenine were present in strand 2?


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