Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Open MARKS Web Download App
Search any question & find its solution
Question: Answered & Verified by Expert
Mark the incorrect statement for DNA.
BiologyMolecular Basis of InheritanceNEET
Options:
  • A The ratios between Adenine and Thymine and Guanine and Cytosine are constant and equal to one in dsDNA.
  • B DNA is an acidic substance present in the nucleus was first identified by Friedrich Meischer in 1869.
  • C The X-ray diffraction data was used for discovery of the DNA
  • D Two strands are anti-parallel to each other.
Solution:
2837 Upvotes Verified Answer
The correct answer is: The X-ray diffraction data was used for discovery of the DNA
In 1953, James Watson and Francis Crick, based on the X-ray diffraction data produced by Maurice Wilkins and Rosalind Franklin, proposed a very simple but famous Double Helix model for the structure of DNA. They have not used this data for the discovery of DNA. DNA as an acidic substance present in the nucleus was first identified by Friedrich Meischer in 1869.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play