MAKE CONNECTIONS Inactivation of one of the Xchromosomes in female mammals involves lncRNA calledXIST RNA, mentioned in this section and in Concept 15.2.Describe transcription and binding of XIST RNA, thensuggest a model for how it initiates Barr body formation.
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
MAKE CONNECTIONS Inactivation of one of the X
chromosomes in female mammals involves lncRNA called
XIST RNA, mentioned in this section and in Concept 15.2.
Describe transcription and binding of XIST RNA, then
suggest a model for how it initiates Barr body formation.
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