The two polynucleotide strands of the DNA molecule are joined through nitrogenous bases. Actually ... Please note that any one nitrogenous base of one DNA strand pairs up only with a specific nitrogenous base of the opposite DNA strand.
|Title||:||BIOLOGY For Tenth Class Part3|
|Author||:||Lakhmir Singh and Manjit kaur|
|Publisher||:||S. Chand -|