Explain the role of scientist :
$1.$ Francis Crick
$2.$ Friedrich griphith $(1928)$
Francis Crick proposed the Central dogma in molecular biology,
He concluded that the $R$ strain bacteria had somehow been transformed by the heat-killed $S$ strain bacteria. Some ‘transforming principle’, transferred from the heat-killed $S$ strain, had enabled the $R$ strain to synthesise a smooth polysaccharide coat and become virulent
$DNA$ exists in a double-stranded form whereas $RNA $ is mainly a single stranded molecule. What is the likely reason for $DNA$ being double stranded?
Which of the following was used by Hershey and Chase to prove that $DNA$ is the chemical basis of heredity
What are Genetic material ?
You are repeating the Hershey-Chase experiment and are provided with two isotopes: $^{32}P$ and $^{15}N$ (in place of $^{35}S$ in the original experiment). How do you expect your results to be different ?
In chromosomes, the material controlling heredity is