A) development mutations
B) differential expression of genes
C) lethal mutations
D) deletion of genes
Correct Answer: B
Solution :
Differentiation of organs and tissues in a developing organism, is associated with differential expression of genes. In regulation of gene expression the chromosomal proteins play an important role. The chromosomal proteins are of two types; histones and non-histones. The regulation of gene expression involves an interaction between histones and non-histones.
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