Question

State the differences between DNA and RNA with regard to the kinds of sugar?
and pyrimidine bases. Also express the functions of the three types of RNA.

Answer 1

Dear Student

DNA	RNA
It is double stranded.	It is single stranded.
The sugar present is deoxyribose.	The sugar present is ribose.
The nitrogenous bases present are adenine, guanine, thymine and cytosine.	In RNA, thymine is replaced by uracil. Hence, nitrogenous bases present in RNA are adenine, guanine, uracil and cytosine.

There are 3 major types of RNA :- During translation,
1)-messenger RNA (mRNA):- It provides the template .
2)-transfer RNA (tRNA) :- It brings amino acid and reads the code.
3)-ribosomal RNA (rRNA) :- It plays structural and catalytic roles .

Regards