Breast cancer can be caused by a genetic mutation on the BRCA1 gene changing a methionine to an arginine residue in the transcribed protein. How will this mutation effect this protein? a) Polarity before and after mutation: b) Size of the region before and after the mutation: c) Tertiary interaction you would expect with substrate:

Q: Based on what you know about the structure of GPCRs, they must have: a)One internal start transfer…

A: Proteins destined for secretion outside the cell or lumen of an organelle are first targeted to the…

Q: The lac operon is an example of ________ control in which the presence of an ________ is required…

A: lac operon is present in E.coli and it produce the enzymes which are required for the lactose…

Q: My Avya mouse is brownish because a) the CpG island with the transposon is unmethylated. b) it was…

A: Epigenetic systems that facilitate gene-environment interactions are involved in the ability of…

Q: 1. a)What would happen if the aminoacyl tRNA synthetase responsible for charging alanine tRNAs also…

A: The polymerization of amino acids according to the codons on mRNA to form proteins is known as…

Q: Consider the following simple regulatory pathways. Assume the full pathway is shown. A- E- B- F- C-…

A: In metabolic pathways, it is common to find that some molecules activate the downstream molecules,…

Q: 1. a)how is it possible for such drugs to selectively kill bacterial cells and not our own cells?…

A: The chemicals or the drugs that are employed to kill bacteria are termed antibiotics. The regulation…

Q: A full-length eukaryotic gene is inserted into a bacterial chromosome. The gene contains a complete…

A: The eukaryotic DNA is composed of coding and non-coding sequences, almost 90% are non-coding…

Q: Which of the following is true about the HesC gene? Choose all possible answe a) repressed by the…

A: Hematopoietic Stem Cells (HSCs) are the main cells inside the hematopoietic system that have the…

Q: Centers of transcriptional repression that are usually associated with lamina or found around…

A: Barr bodies are transcriptionally repressed centers meaning that most genes on the inactivated X…

Q: A TATA box (core promoter) is ____________. Group of answer choices a) None of the above b)…

A: ANSWER;- a) None of the above Explain;- A TATA box is a sequence of DNA found in the core promoter…

Q: Which of the following introns have self-splicing activity?a) Group I and group IIb) Group II and…

A: An intron is a nucleotide sequence present within a gene which is removed by RNA splicing before…

Q: Insulin is a peptide hormone encoded by the INS gene, which is on chromosome 11. Insulin is produced…

A: The hormone insulin is required by the body to reduce the level of blood glucose. The pancreatic…

Q: ATM is a kinase that phosphorylates histone H2AX in response to double-stranded DNA breaks. Which of…

A: ATM (Ataxia Telangiectasia Mutated) is a protein kinase that plays a critical role in the cellular…

Q: A mutation creates a dominant negative allele of a particular gene. The gene encodes a protein that…

A: * A monomer is an single subunit and a trimer consists of three monomers bound together with bonds.…

Q: The lactose operon is likely to be transcribed when _____. A) there is more glucose in the cell than…

A: The initiation of transcription determines the regulation of prokaryotic genes. The regulation of…

Q: 1)Which of the following would represent mRNA for the above minigene? a.) AUG CGC GUU CCC GUG UAA…

A: The mRNA is synthesized based on the template strand of the DNA, which is complementary to the…

Q: Rho independent terminators Select an answer and submit. For keyboard navigation, use the up/down…

A: Transcription is the process in which the RNA is formed out of the DNA. The process of transcription…

Q: Match the following terms related to transcription in eukaryotes (you may use terms more than once…

A: RNA polymerase (RNAP) is an enzyme that transcribes RNA using DNA as the template. In Eukaryotes…

Q: The E. coli genome contains approximately 4639 kb. (a) How many copies of the 6-bp recognition…

A: E.coli is a type of bacteria that normally lives in the intestine. It is also found in the gut of…

Q: In the absence of tryptophan and the trpD structural gene contains a frameshift insertion mutation,…

A:

Q: a mutation in the gene encoding Dicer would most likely result in: A) a failure to break the H…

A: Dicer, also known as endoribonuclease Dicer or helicase with RNase motif, is an enzyme that in…

Q: The lac operon has 4 genes, I, Z, Y and A. For each scenario, tell me the result of the mutation,…

A: The lac operon is an operon or group of genes with a single promoter. The genes in the operon…

Q: Cystic fibrosis (CF) is an inherited disorder caused by different types of mutations, many of which…

A: CF is caused by a mutation in a gene called the cystic fibrosis transmembrane conductance regulator…

Q: A mutation takes place that switches a codon from ACG to ACA. What type of mutation is this? A)…

A: A mutation is a random change in the DNA sequence.

Q: The pioneer round of translation of an mRNA is very important to identify potentially dangerous…

A: The pioneer round of translation is a crucial step in identifying potentially problematic mRNAs.…

Q: When  regulatory protein binds to a mature mRNA in the cytoplasm and prevents it from binding to a…

A: Translational regulation is the mechanism that aims to control the levels of protein synthesis from…

Q: What is Mutation 2? a) Synonymous b) Read through c) Nonsynonymous d) Nonsense Mutation 2 ATA…

A: Mutations are sudden heritable change in the DNA sequence that alters the amino acids and then the…

Q: Label these processes 1-8 (1 being the earliest time point) in the order they would occur during…

A: DNA is the molecule which stores the genetic information. Genetic information in the DNA is first…

Q: How does the process of transcription differ between prokaryotes and eukaryotes? a) Prokaryotes have…

A: Transcription: Transcription is the process by which genetic information encoded in DNA is copied…

Q: What mutation could cause the following error in the second mRNA sequence? Normal: AUAUUCGGCAAUCCG…

A: The mutation is the process that brings changes in the DNA sequence spontaneously and as a result,…

Q: Which among A - D is false regarding antisense RNAs? A) O they occur in protein coding genes B) O…

A: It is a tool for preventing gene expression, they are formed by synthetic antisense…

Q: What is the result when the core histones are acetylated via histone acetyltransferase? O A) The…

A: Answer :- Option (B) is correct. - The DNA becomes more tightly associated with the core.

Q: In the trp operon, if a mutation occurred in the gene for the repressor so that it could bind to the…

A: Bacteria like Escherichia coli (a friendly gut bacterium) require amino acids to survive since they,…

Q: Describe what would happen to the lac operon in a low-lactose environment and in a high lactose…

A: LacZ (encodes beta-galactosidase), lacY (permease), and lacA (trans-acetylase) are the three genes…

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.