mentum Learn... 1 v My virtual Academ... Next 1 Genetic Mutations: Mastery Test Select the correct answer from each drop-down menu. The lac operon in E.coli regulates genes that code for enzymes required for breakdown of lactose. The lac operon is operon that is activated in the presence of 2022 Edmentum All rights reserved O Type here to search B glucose lactose sugar 4 Reset 6 Next 67°F Sunny S

Q: 10. a. Describe an operon? b. How lac operons controls gene expression in bacteria

A: (a) An operon is a functional unit of DNA containing a set of genes including structural gene, a…

Q: The tryptophan operon is usually in the _______position and is inhibited by a/an_______ molecule.

A: Answer:  TRYPTOPHAN = It is an essential amino acid which is not readily synthesized by humans, we…

Q: Describe the regulation of the lac operon when lactose is present and glucose is absent

A: In 1961, F. Jacob and J. Monod proposed the operon model to explain the genetic basis of enzyme…

Q: When tryptophan is present The trp operon is transcribed O The trp operon is NOT transcribed Only…

A: for the given question 4. Tryptophan is present and help in the turning on and off of the trp…

Q: 40 The accepted term for the functional investigation of a gene that starts with the gene sequence…

A: Genetics is the branch of biology that deals with the study of genes and their inheritance.

Q: 2. please answer this asap

A: The research entails isolating mutations in both genes that encode the enzymes A and B, also as a…

Q: 1.True or false: In a bacterial species with a "lac operon", the repressor protein will be bound to…

A: Prokaryotic gene regulatory system is known as operon system. In this process the expression of…

Q: Lacl' mutant-Lactose is present I P lacl lacP laco lacz lacy lacA LEVEL 16-21 1 OF 4 Look at the lac…

A: The lac operon, is a group of genes that are involved in the metabolism of lactose in bacteria. The…

Q: A Staphylococcus aureus undergoes a lac operon mutation that prevents repression of structural genes…

A: Lac operon - Lac operon or lactose operon is the DNA segment that controls the metabolism of lactose…

Q: In the lac operon, the product of structural gene lacZ  is capable of ________.   producing zinc…

A: The lac operon is an operon, or gathering of genes with one promoter. The genes in the operon encode…

Q: 31. In negative feedback inhibition, the ultimate product in a series of reaction inhibits the…

A: Proteins' primary function is to operate as enzymes—catalysts that speed up practically all chemical…

Q: 13. Choose/mark the correct word to complete the statement. Consider the regulation of CAMP and the…

A: Operon is the segment of DNA which contains regulatory gene, promoter gene, operator gene and…

Q: hich of the following are NOT true about allolactose: It's formation requires expression of the lac…

A: Lac Operon is a cluster of genes that is required for the expression of genes to form proteins or…

Q: Explain how the Lac operon works to regulate the expression of genes in bacteria. Explain the operon…

A: Bacteria has chromosome and some extra chromosomal plasmids.

Q: that best fits the phrase below (1-20) Cis-acting B Post-transcriptional modification…

A: Francis Crick proposed central dogma. The RNA is formed from DNA with the help of enzyme RNA…

Q: Genes in a bacteriophage that are expressed after expression of genes that initiate the lytic cycle…

A: The lysogenic and lytic life cycles are the 2 varieties of life cycles that phages will undergo.…

Q: Lac Repressor A Operator Lac Y eene Promoter Lac Z eene Lac A gene В Lac Y eene Lac A gene Promoter…

A: Lac operon consists of a group of genes that codes for a protein that allows bacteria to use lactose…

Q: The figure below is a portion of a Northern blot which shows the change in abundance of the HS-X…

A: Introduction  In molecular biology, a Southern blot is a technique for identifying a specific DNA…

Q: 1. Please sketch a liposome structure for mRNA COVID vaccine and illustrate its pathway in the…

A: The mRNA COVID vaccine is composed of messenger ribonucleic acid (mRNA) strands encapsulated in…

Q: The lacZ gene from E. coli encodes the enzyme B-galactosidase, which catalyzes conversion of a…

A: Recombinant DNA technology deals with changing the DNA sequence of the organisms. The molecular…

Q: explain this image for the ecoli bacteria mutation trpE

A: Introduction The trp operon is a type of operon system found in E. coli bacteria. The trp operon…

Q: 4. A mutant strain of E. coli produces B-galactosidase in the presence and the absence of lactose.…

A: An operon is defined as a set of structural genes regulated by a common promoter in bacteria.

Q: What is lac operon system?

A: Lac operon is one of the method by which a prokaryotic cell control gene expression.  The lac operon…

Q: Part 1 Bio Question 4

A: The objective of the question is to identify the protein(s) from the given list that bind to…

Q: What proportion (in %) of the CFTR gene/DNA sequence is represented in the CFTR mRNA?   The mRNA…

A: The cystic fibrosis transmembrane conductance regulator (CFTR ) gene displays a tightly regulated…

Q: * 00 T 品 11. Protein expression can be regulated by RNA interference (RNAI) . Which proteins and…

A: RNA interference is a biological method which is used for silencing gene expression. It involves…

Q: In a bacterial species with a "lac operon", the repressor protein will be bound to DNA when lactose…

A: Lac opreron is the custer of genes that regulates the expression of genes. It consists of one…

Q: A scientist has discovered a strain of bacteria that can convert ethanol to pyruvate when stimulated…

A: Solution 1) The repressor of this operon is functional It is active when ethanol is absent and…

Q: Which of these is found in eukaryotes but not in bacteria?

A: