Problem 2112 Histone genes are unusual among eukaryotic gene

Problem 21.12 Histone genes are unusual among eukaryotic genes because they do not have introns, and histone mRNAs do not have poly(A) tails. Moreover, in almost all eukaryotes, histone genes are arranged in multiple tandem domains, each domain carrying one copy of each of the five histone genes. Part A Explain these features in terms of the special requirements for histone synthesis Drag the terms on the left to the appropriate blanks on the right to complete the sentences.

Solution

Histones are required in large amounts during only one brief period in the cycle - the beginning of S Phase