What background information did Watson and Crick have made available for developing a model of $DNA$ ? What was their contribution ?
- Watson and Crick had the following information which helped them to develop a model of $DNA.$
$(i)$ Chargaffs' law suggesting $\mathrm{A}=\mathrm{T}$ and $\mathrm{C}=\mathrm{G}$.
$(ii)$ Wilkins and Rosalind Franklin's work on $DNA$ crystal's $X$-ray diffraction studies about $DNA's$ physical structure.
$(iii)$ Watson and crick proposed $(a)$ How com-plementary bases may pair $(b)$ Semi conservative replication and $(c)$ Mutation through tautomerism
Watson and Crick are known for their discovery that $DNA$
Explain the role of scientist :
$1.$ Friedrich Miescher $1869$
$2.$ Maurice wilkins and Rosalind Franklin
Which of the following is incorrect for $DNA$ structure?
The successive nucleotides of $RNA$ are covalently linked through or antiparallal
If the length of E. Coli $DNA$ is $1.36 \;mm$, calculate the number of base pairs in E. Coli.