In the above example, the pathway can be simplified as below. Gene A and B are enzymes responsible for each step of the pathway.                 A                   B Blue eye --> Blue eye --> Brown eye Based on this pathway, what are the genotypes of the blue eyed parents?   A. A_bb and aaB_   B. aabb and A_B_   C. aaB_ and aaB_   D. A_bb and A_bb

Q: nzyme is needed for the Krebs cycle. It will be made following the directions contained in a gene of…

A: Cellular respiration is the process of breaking down glucose into carbon dioxide, water, and ATP,…

Q: A mouse gene was identified and determined to be required for formation of heart muscle. A gene with…

A: Almost all species have DNA as their genetic material.

Q: a way in which proto-oncogenes can change to become genes that induce cancer?

A: A proto-oncogene is a normal gene that can turn into an oncogene due to mutations or increased…

Q: Which of these statements is correct regarding the CRISPR/Cas9 system in eukaryotic cells? a.Single…

A: The game-changing CRISPR-Cas9 technology is changing the game of genome editing. The CRISPR-Cas9…

Q: An additional gene, called W, is found that affects the synthesis of enzymes 1 and 2. Mutant d has a…

A: Introduction Positive regulator is a substance which increases the rate of enzymes activity.…

Q: The goal of most gene therapies is to insert a healthy copy of a gene into the genome.  Besides…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Below is the genotyping results using PCR and gel electrophoresis for a DNA-binding regulatory…

A: The transcription factor is responsible for binding to the promoter. It leads to proper binding of…

Q: E. coli are grown on a medium containing lactose. Once glucose is added to the medium, the bacteria…

A: In bacterial cells, the regulation of gene expression plays a crucial role in adapting to changing…

Q: The term "photoreceptor" refers to the G-protein-coupled receptors located on the cell surface of…

A: Eye is one of the sensory organ. It is responsible for visualising the objects.

Q: At birth a child has got blue eyes, but now his/her eyes turn brown. Which of the following…

A: The genes which encode for the eye color actually just decide the levels of pigment to be present in…

Q: In the paper we read at the beginning of the term the coat color differences in the beach mice were…

A: The coat color differences in the beach mice were driven by change in the melanocortin-1 (MCR-1)…

Q: What are two reasons that a eukaryotic gene (e.g. Green Fluorescent Protein in jellyfish) will not…

A: An eukaryotic gene is a segment of DNA that encodes the information needed to produce a functional…

Q: A mutation in a coding region of DNA, but that does not change the amino acid, would almost…

A: *! silent mutation is due to a point mutation that gives different codon transcribed as a synonymous…

Q: What strategy does a genetically encoded calcium indicator look like to allow fluorescence imaging…

A: A crucial part of astrocyte physiology and function is Ca2+ signaling. Ca2+ imaging is the most…

Q: Sickle cell disease is caused by a substitution in the beta globin gene. As a result, one amino acid…

A: Normal RBC is a biconcave disc shape structure without any nucleus and have Cytoplasm that possess…

Q: Give two DIFFERENT examples of how the following can occur: a. A point mutation in an exon that is…

A: Silent mutation - Silent mutations are mutations in DNA that do not have an observable effect on the…

Q: How can Cas9 technology be used in gene therapy. A. Base editing can be used to repair DNA error…

A:

Q: We use the Alu element polymorphism to trace each student's ancestry. This element is present in an…

A: Introduction  Polymorphism refers to the occurrence of multiple genetic variants, or alleles, within…

Q: Genes of related function frequently cluster into: please explain the answer  a.transcripts…

A: Gene is the functional part of the DNA that undergoes transcription and produce RNA. They have a…

Q: A21. Two single-base substitutions in the trpA gene of E.coli both affected amino acid number 234.…

A: Missense mutation defines the alteration of genetic code/codon via the single base pair…

Q: ptoph had a mutation on the repressor, not allowing it to bind with tryptophan. The repressor is…

A: Operons are proteins encoded together as a block that performs specific functions and are involved…

Q: The reason LacZ is frequently used as a reporter gene is: a. The lacZ gene product binds to the…

A: LacZ is a gene of lac operon which codes for β-galactosidase. The reporter genes cause a visible…

Q: In experiments in which rat embryo fibroblasts are transfected with suspected oncogenes,…

A: Myc gene basically a proto-oncogene that play a key role in cell cycle progression, cellular…

Q: You are working as a protein engineer. You decide to work on lacl protein ( This is the repressor…

A: An operon is a cluster of genes under a single promoter. The gene products of genes in an operon are…

Q: researcher has identified a mutant strain of yeast whose histones are unable to be acetylated. Which…

A: Histone acetylation and deacetylation are the processes by which the lysine residues within the…

Q: When considering the cause of the disease in a patient who is the child of an inbred couple, it was…

A: 1. The given situation describes a child, born to an inbred couple, who is suffering from a…

Q: DNA methylation prevents gene expression.  Methylation and de-methylation are stimulated by a…

A: Methylation  Methylation is metabolic process takes place on the DNA. The methylation of DNA control…

Q: What is the difference between a structural gene and a regulator gene? a. Structural genes are…

A: Gene is the hereditary unit occupying a specific position in the chromosome and carries…

Q: Which of the following order of events correctly depicts the Central Dogma as it would occur in an…

A: The Central Dogma of molecular biology, first proposed by Francis Crick in 1958, represents the flow…

Q: Describe what process leads to gene conversion. What are the consequences of gene conversion for…

A: Gene conversion is the process by which one DNA sequence replaces a homologous sequence such that…

Q: A scientist is interested in producing flowers with a darker red color. To do this, the scientist…

A: Si RNA is a small interfering or silencing RNA, which is a non-coding, double stranded RNA molecule.…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.