. If a particular operon encodes enzymes for makingan essential amino acid and is regulated like thetrp operon, then(A) the amino acid inactivates the repressor.(B) the repressor is active in the absence of theamino acid.(C) the amino acid acts as a corepressor.(D) the amino acid turns on transcription of the operon
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.
. If a particular operon encodes enzymes for making
an essential amino acid and is regulated like the
trp operon, then
(A) the amino acid inactivates the repressor.
(B) the repressor is active in the absence of the
amino acid.
(C) the amino acid acts as a corepressor.
(D) the amino acid turns on transcription of the operon
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