Which of the following are pyrimidines?

Who proposed the following statement?
"It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material."

Select the correct option for $DNA$.

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

Deoxyadenylic acid,deoxyguanylic acid,deoxycytidylic acid,and deoxythymidylic acid are $...............$.

In a nucleoside,the nitrogenous base is attached to which carbon of the pentose sugar?