1. Tardigrade
  2. Question
  3. Biology
  4. DNA and RNA, both are types of nucleic acids. Figure out the correct statements concerning DNA and RNA from below. I. Adenine and guanine are bases that have a double ring structure; cytosine, thymine and uracil are bases with a single ring structure. II. An adenine nucleotide from DNA is the same as an adenine nucleotide from RNA; in DNA, adenine pairs with thymine and in RNA adenine pairs with uracil. III. The base pairing occurs in a double DNA helix and when RNA is synthesised during transcription it follows the rule that a purine pairs with a pyrimidine. IV. The two polynucleotide strands of a DNA molecule run in opposite directions so that the double helix formed has two strands that are parallel to each other.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. DNA and RNA, both are types of nucleic acids. Figure out the correct statements concerning DNA and RNA from below.
$I$. Adenine and guanine are bases that have a double ring structure; cytosine, thymine and uracil are bases with a single ring structure.
$II$. An adenine nucleotide from DNA is the same as an adenine nucleotide from RNA; in DNA, adenine pairs with thymine and in RNA adenine pairs with uracil.
$III$. The base pairing occurs in a double DNA helix and when RNA is synthesised during transcription it follows the rule that a purine pairs with a pyrimidine.
$IV$. The two polynucleotide strands of a DNA molecule run in opposite directions so that the double helix formed has two strands that are parallel to each other.

Molecular Basis of Inheritance

Solution:

Correct answer is (d) $I, III$ and $IV$ only