I am:double stranded found in the nucleus have four nitrogen bases contain deoxyribose sugar contain thymine instead of uracil. What important molecule am I?

Ialready know the answers to these questions and they are on the attachment. but i just need to know why that answer is the correct one. plz asap! this is for a report that i need to email by 10!

What are the student's observations and inferences before he starts his investigation?

Which group of molecules are targeted by the kinases in order to control this movement