In dna molecules nucleotides bond together according to the nitrogenous bases. which of the following correctly describes how nitrogenous bases bond together?
a). purines bond to other purines
b). purines bond to pyrimidines
c). purines and pyrimidines can bond with themselves and each other
d). pyrimidines bond to pyrimidines

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the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion