The cI gene that encodes the λ repressor has two promotersdesignated PRE and PRM. Which of the following statements isfalse?a. PRE is activated by the cII protein.b. PRE is activated by the λ repressor.c. PRM is turned on after PRE.d. PRM is needed to maintain the lysogenic cycle.
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 cI gene that encodes the λ repressor has two promoters
designated PRE and PRM. Which of the following statements is
false?
a. PRE is activated by the cII protein.
b. PRE is activated by the λ repressor.
c. PRM is turned on after PRE.
d. PRM is needed to maintain the lysogenic cycle.
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