Wild-type E. coli grow best at 37oC, but can grow efficiently at temperatures up to 42oC. An E. coli strain has a mutation in the gene encoding rho protein that results in a stable protein at 37oC, but this mutant protein ceases to function at 42oC. When bacteria bearing this temperature- sensitive mutation are raised at 42oC, which of the following effects would you expect to see? Explain your reasoning for each of the 5 options a. Transcription does not take place b. All RNA molecules are shorter than normal c. All RNA molecules are longer than normal d. Some RNA molecules are longer than normal e. RNA is transcribed from both strands
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.
Wild-type E. coli grow best at 37oC, but can grow efficiently at temperatures up to 42oC. An E.
coli strain has a mutation in the gene encoding rho protein that results in a stable protein at 37oC,
but this mutant protein ceases to function at 42oC. When bacteria bearing this temperature-
sensitive mutation are raised at 42oC, which of the following effects would you expect to see?
Explain your reasoning for each of the 5 options
a. Transcription does not take place
b. All RNA molecules are shorter than normal
c. All RNA molecules are longer than normal
d. Some RNA molecules are longer than normal
e. RNA is transcribed from both strands
Mutations is the phenomenon in which small changes in the nucleotide sequences takes place which leads to damage to the normal characteristics.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
