Supercoiled $DNA$ can be traced in
- AProkaryotes and eukaryotes
- BEukaryotes only
- CProkaryotes only
- DNone of these
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Similar Questions
In the given polynucleotide chain,which of $P, Q, R,$ and $S$ are purine nitrogenous bases?
Medium
View SolutionIn $DNA$,$20 \%$ of the bases are adenine. What percentage of bases are pyrimidines (in $\%$)?
Easy
View SolutionMatch List-$I$ with List-$II$:
List-$I$ List-$II$ $a$. Bacteriophage $\phi \times 174$ $i$. $48502$ base pairs $b$. Bacteriophage lambda $ii$. $5386$ nucleotides $c$. Escherichia coli $iii$. $3.3 \times 10^9$ base pairs $d$. Haploid content of human $DNA$ $iv$. $4.6 \times 10^6$ base pairs
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
|---|---|
| $a$. Bacteriophage $\phi \times 174$ | $i$. $48502$ base pairs |
| $b$. Bacteriophage lambda | $ii$. $5386$ nucleotides |
| $c$. Escherichia coli | $iii$. $3.3 \times 10^9$ base pairs |
| $d$. Haploid content of human $DNA$ | $iv$. $4.6 \times 10^6$ base pairs |
Choose the correct answer from the options given below:
At which position does the phosphate group attach to the pentose sugar in a nucleotide?
Medium
View SolutionWhen did Watson and Crick propose the $DNA$ double helix model?
Easy
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