Question

Which statement is true about the structure of a double-stranded dna molecule?.

Answer 1

Which of the following statements about the secondary structure of a tRNA molecule is true? It has more double-stranded than single-stranded regions It has more single-stranded than double-stranded regions Its single-stranded and double-stranded regions are about the same Telomeres contain many genes that encode DNA polymerases. True False

Answer 2

In the structure of a DNA, as the particular complementary base pairing of the DNA nucleotides, the diameter of a DNA molecule is the same over its length.

What is a DNA?

DNA stands for deoxyribonucleic acid, is the hereditary unit of an organism which is responsible for the production of characters.

The missing options in the question are:

• Purine nucleotides always form base pairs with other purines, and pyrimidine nucleotides always form base pairs with other pyrimidines.
• The nucleotides in a strand of DNA are held together by hydrogen bonds
• The diameter of a DNA molecule is the same along its entire length due to the specific complementary base pairing of the DNA nucleotides.
• The nitrogenous bases in one strand are held to the nitrogenous bases of the other strand by phosphodiester bonds.

In the structure of a DNA, as the particular complementary base pairing of the DNA nucleotides, the diameter of a DNA molecule is the same over its length.

Thus, this is the true statement regarding the structure of a double-stranded DNA molecule i.e., option C.

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