DNA consists of two polynucleotide chains. Ea | vedclass

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(D) Watson and Crick proposed that the $DNA$ molecule is in the form of a double helix with two polynucleotide chains coiled around one another in a s

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$10$

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(D) Watson and Crick proposed that the $DNA$ molecule is in the form of a double helix with two polynucleotide chains coiled around one another in a spiral. This is known as $B-DNA$ or biological $DNA$. It has $10$ nucleotide pairs per turn of the double helix and is right-handed with a diameter of $20 \mathring{A}$. One complete turn of the double helix is $34 \mathring{A}$. The distance between adjacent stacks or nucleotides is $3.4 \mathring{A}$. Hence,option $(D)$ is correct.

$DNA$ consists of two polynucleotide chains. Each chain forms a right-handed spiral with how many bases in one turn of the spiral?

Similar Questions

Which base is present in $RNA$ but not in $DNA$?

Which of the following is not a purine?

Which statement is correct for the nucleotides of $DNA$?

The number of hydrogen bonds between guanine and cytosine; and between adenine and thymine in $DNA$ is

Assertion $(A)$: Adenine and guanine are present in $RNA$ as purine bases.
Reason $(R)$: The base uracil is present in $RNA$.
The correct option among the following is:

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