The two strands of the DNA structure are: | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The $DNA$ double helix model,proposed by $Watson$ and $Crick$,consists of two polynucleotide strands.These strands run in opposite directions,mean

Vedclass · Accepted Answer

Antiparallel and complementary

Vedclass · Answer

(B) The $DNA$ double helix model,proposed by $Watson$ and $Crick$,consists of two polynucleotide strands.These strands run in opposite directions,meaning one strand runs in the $5' \rightarrow 3'$ direction while the other runs in the $3' \rightarrow 5'$ direction; this orientation is known as antiparallel.Furthermore,the nitrogenous bases on the two strands are complementary,where $Adenine$ $(A)$ always pairs with $Thymine$ $(T)$ via two hydrogen bonds,and $Guanine$ $(G)$ always pairs with $Cytosine$ $(C)$ via three hydrogen bonds.Therefore,the strands are antiparallel and complementary.

The two strands of the $DNA$ structure are:

Similar Questions

Which of the following is not found in $DNA$?

Assertion $(S)$: $RNA$ does not contain $T$ (Thymine).
Reason $(R)$: $DNA$ does not contain $U$ (Uracil).

In the given polynucleotide chain,which of $P, Q, R,$ and $S$ are purine nitrogenous bases?

What is the reason for the anti-parallel nature of $DNA$ strands?

Provide the full forms of the following:
$1.$ $\text{DNA}$
$2.$ $\text{RNA}$
$3.$ $\text{hnRNA}$
$4.$ $\text{UTR}$

Vedclass Test Series

Exam Paper Generator

Online Exam Module