The nucleotides that are present in DNA molecule are 4. They are Thymine (T), Guanine (G), Adenine (A) and Cytosine (C).

Here in this Adenine pairs with Thymine (A - T) and Cytosine pairs with Guanine (C - G).

The Law of Demand tells that, if the price of a product increases then the demand will go down i.e, decreases iff all other things equal.

Postmodernism is the literary period, the beat generation aligned with. Postmodernism refers to mid to late 20th century.

The journal entry to record a credit sale is Accounts Receivable. Credit sale is nothing butthe customers pay at the time of buying.