What is an operon and how do inducible operons (e.g., the lactose operon) and repressible operons (e.g., the tryptophan operon) benefit a bacterial cell? Which enzyme will be produced in a cell in which there is a nonsense mutation in the lac operon?
What is an operon? What is recombinant DNA and for what it is used for? What is recombinant DNA technology? What is genomics? What is its purpose? What is the smallest part of DNA that undergoes recombination? What is methylation and how does it cause an effect on gene expression?
It controls functions of genes of same DNA on which it is located. The best example of this type of gene is lac Operon. To understand cis gene and before going ahead let us first learn what is operon (best example of cis-gene) ? An operon is a functioning unit of genomic DNA. Thi...
"Aim, load, fire: the type VI secretion system, a bacterial nanoweapon." – a Summary – -Maria Mitchell T6SS, Type VI Secretion System, is a specialized protein secretion system used by bacteria for survival. This system acts as a “gun” firing proteins into the target cell. It is ...
L-Arabinose is a naturally occurring isomer and a constituent of plant polysaccharides. It is utilized as the sole carbon source in microbial culture due to the presence of an inducible arabinose operon in most bacteria, which codes for enzymes and transporters. ...
What conditions are essential for the open of the lac operon? A. repressor is activated B. inducer binds to the repressor protein to induce conformational change C. presence of lactose or IPTG D. presence of glucose 相关知识点: 试题来源: 解析 B、C 反馈 收藏 ...
What would be a negative control in an enzyme experiment? (a) What is an operon? (b) Describe how the lac operon works to control lactose catabolism. Briefly explain the process of protein biosynthesis. Explain what denaturing of a prote...
(a) What is an operon? (b) Describe how the lac operon works to control lactose catabolism. What is an enzyme reaction? What are the characteristics of enzymes? In the body, the lactase enzyme functions to break down lactose during digestion. In light of ...
Yes, especially in prokaryotes where operons may contain multiple cistrons that are transcribed together but function independently. 12 What is a gene? A gene is a segment of DNA that contains the information needed to produce proteins and RNAs, which are essential for the organism's development...
A financial and publicity organizer, as of a boxing match or an artistic performance. Promoter (Genetics) The region of an operon that acts as the initial binding site for RNA polymerase. Promoter One who promotes. A promoter of seditious ideas Promoter One who promotes entertainment events or ...