DNA vs RNA
DNA |
RNA |
Double-stranded | Usually single-stranded |
Contains deoxyribose sugar | Contains ribose sugar |
Have A, T, G, and C as nitrogenous bases | Have A, U, G, and C as nitrogenous bases |
Present in the nucleus, mitochondria, and chloroplast only. | Present in cytoplasm, ribosome, and nucleolus. |
It is stable as it is less reactive | It is unstable as it is more reactive |
For more information read: DNA vs RNA
Molecular Basis of Inheritance Notes Class 12
CBSE Class 12 Molecular Basis of Inheritance: Inheritance is transmitted by certain molecules that Mendel termed as ‘factors’, but their nature was discovered later with the development of various scientific techniques. The molecules which govern the inheritance are called genes and it is of two types; Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA). In all organisms except viruses, DNA acts as the genetic material whereas RNA acts as the messenger molecule, however in some viruses RNA functions as the genetic material. It is because DNA is a more stable molecule as compared to RNA and hence, it evolved as the genetic material of almost all the organisms.
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