The lacheinmal protein is a hypothetical protein that causes people to smile more often. it is inactive in many chronically unhappy people. the mRNA isolated from a number of different unhappy individuals in the same family was found to lack an internal stretch of 173 nucleotides that is present in the lacheinmal mRNA isolated from happy members of the same family. the DNA sequences of the Lacheinmal genes from the happy and unhappy family members were determined and compared. they differed by a single nucleotide substitution, which lay in an intron. What can you say about the molecular basis of unhappiness in this family?
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.
The lacheinmal protein is a hypothetical protein that causes people to smile more often. it is inactive in many chronically unhappy people. the mRNA isolated from a number of different unhappy individuals in the same family was found to lack an internal stretch of 173 nucleotides that is present in the lacheinmal mRNA isolated from happy members of the same family. the DNA sequences of the Lacheinmal genes from the happy and unhappy family members were determined and compared. they differed by a single
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