Describe different experiment which proves that DNA is a Genetic material.
 

Which of the following is incorrect for Heryshey – chase experiment ?

Transformation experiments using Pneumococcus bacteria led to the hypothesis that

$DNA$ 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 is false for $RNA$?

$(i)$ $RNA$ can directly code for the synthesis of proteins

$(ii)$ It is very common process to synthesis $DNA$ from $RNA$

$(iii)$ $RNA$ is used as genetic material only in human

$(iv)$ One polynucleotide chain is present in $RNA$