In a DNA molecule consisting of 28 nucleotide | vedclass

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

Question

(B) According to $Chargaff's$ rule,in a double-stranded $DNA$ molecule,the amount of purines $(Adenine + Guanine)$ is equal to the amount of pyrimidin

Vedclass · Accepted Answer

$14$

Vedclass · Answer

(B) According to $Chargaff's$ rule,in a double-stranded $DNA$ molecule,the amount of purines $(Adenine + Guanine)$ is equal to the amount of pyrimidines $(Thymine + Cytosine)$.In any $DNA$ molecule,the total number of nitrogenous bases is equal to the total number of nucleotides.Since the total number of nucleotides is $28$,the total number of nitrogenous bases is also $28$.Because purines and pyrimidines are present in equal proportions ($50\%$ each),the number of purines is calculated as $28 / 2 = 14$.Therefore,the correct answer is $14$.

In a $DNA$ molecule consisting of $28$ nucleotides,what is the number of purine nitrogenous bases?

Similar Questions

The theory of jumping genes was propounded by, or the Nobel Prize for the concept of jumping genes was given to:

Which of the following base pairs is incorrect?

Assertion $(A) :$ The distance between two polynucleotide chains in $\text{dsDNA}$ remains constant.
Reason $(R) :$ Always a purine comes opposite to pyrimidine or vice versa.

$DNA$ is a double helix and:

$NHC$ (Non-Histone Chromosomal) structural proteins are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module