Identical twins have been studied extensively to help us understand the inheritance of traits in humans. We have long believed that the sequence of nucleotides in our genes was the ultimate determinant of protein function. If that is true, what could explain the observations that one identical twin can have asthma but not the other? What about when one identical twin has severe depression and not the other?

Q: quadrant for several months. She visits her physician, who does an endoscopic exam to diagnose…

A: Helicobacter pylori is a bacteria that may invade our gut and may cause ulcers. It is a spiral…

Q: A geneticist uses a generic engineering approach to mutate the TATA-building protein (TBP) of a…

A: *The TBP is the gene that instruct for making a protein called the TATA box binding protein. *This…

Q: What does Artemis (protein) do? How do loss of function mutations associated with Artemis cause…

A: Artemis is nuclear protein which is involved in DNA repair as well as V(D)J recombination.…

Q: Hemoglobin, a protein found in red blood cells, carries oxygen. Abnormal hemoglobin cannot carry as…

A: Part A:Messenger RNA sequences produced from the normal and abnormal DNA sequences:Normal DNA…

Q: Many aspects of gene function can be nicely explained with the one- gene-one-enzyme hypothesis,…

A: Genes are a set of instructions that determine what the organism is like, its appearance, how it…

Q: Members of a family are affected by a hereditary inflammatory and immunodeficiency disease. The…

A: Co-dominance:Co dominance is when the both genetypic alleles are seen in phenotype. Dominant…

Q: Bombay effect.

A: The Bombay effect is a phenomenon depicted by the H antigen, which is responsible for the expression…

Q: what advantage is there to having one copy of the sickle cell gene and one copy of the normal gene

A: Sickle cell anemia is a genetic disorder in which there is a mutation in the hemoglobin gene. The…

Q: define Silent mutations

A: point mutations result in inheritable changes that occur on a single random nucleotide on the DNA.…

Q: MSH2 is a gene commonly associated with HNPCC (Hereditary nonpolyposis colorectal cancer). This gene…

A: Hereditary nonpolyposis colorectal cancer (HNPCC), also known as Lynch syndrome, is an inherited…

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: How would you explain gene expression? How is it that a particular genotype is actually expressed as…

A: The central dogma is the flow of information that is carried by a gene that is expressed in the form…

Q: What do you predict would be the consequence of a mutation in FtsZ that disrupts the function of the…

A: FtsZ is a protein found in the prokaryotes as well as some eukaryotes which are encoded by the ftsZ…

Q: 1. What is an allele? 2. What is a point mutation? 3. How are point mutations related to alleles?…

A: Note: I have answered These questions based on my knowledge, we are not supposed to answer questions…

Q: The phenotype of a heterozygous mouse (Aa) is agouti.  The agouti banding pattern is due to altered…

A: * Homozygous dominant and Heterozygous will produce agouti that is AA or Aa respectively  and the…

Q: Create a typewritten document providing answers to these questions Questions: 1. How does the…

A: Deoxyribonucleic acid, or DNA, is a long double helix made up of two polymer chains of repetitive…

Q: One unexpected result of the sequencing of the human genome was the finding that mutations in a…

A: The genetic information of all living organisms (except some viruses) is stored in the cell in the…

Q: What did you learn regarding the diversity of human physiognomy and physiology (both “normal” and…

A: Human physiognomy refers to the anatomical term that describes the shape and physical appearance…

Q: people with osteogenesis imperfecta have a dominant mutation in one of the two genes that produce…

A: Mutation - Mutation is defined as the sudden change or alteration in the DNA sequence. Mutation is…

Q: Which of the following is an explanation for how there can be differential gene expression…

A: Ans-C) There are unique combinations of transcription factors in different tissues of the organism…

Q: How does gene expression change over time for the polypeptide components of hemoglobin?

A: There is a change in the polypeptide chains of the hemoglobin from the fetus till birth.

Q: What is mitochondrial DNA and how is it inherited?

A: Mitochondria are organs that present within eukaryotic cells. It performs vital functions such as…

Q: The FOXP2 gene is sometimes called the “language gene.” Why is this name inaccurate?

A: The FOXP2 gene present in many vertebrate including human beings. It encodes a protein Forkhead…

Q: Of those in the following list, which organ(s)/tissue(s) is/are affected by mutations in this gene…

A: Mutations in the following gene gives rise to a genetic disorder known as Xeroderma pigmentosum.…

Q: What is the relationship between beta-amyloid and the protein APP? How does the APP protein differ…

A: It is a progressive neurological disorder that causes the brain to shrink and brain cells to die.

Q: . Neurobiology of speech and language has been studied in a family in which half of the members have…

A: Answer :- option (B) is correct. - Determine the DNA sequence of the FOXP2 gene in several species…

Q: What is recessive mutation ?

A: The change in the sequence of nucleotides in the genome of an organism is called a mutation. This…

Q: From gene expression studies on development of the gut, you have decided to study a gene called…

A: Gene expression is the process where the information encoded in a gene is used to direct the…

Q: MCR1 the only gene responsible for the variation in the human skin color?

A: MCR1 (melanocortin 1 receptor)  gene is very well known to be associated with the variations found…

Q: What are three reasons why gene expression might vary across time and across different parts of the…

A: In human, around 20000 genes are present in almost every cell in our body. Most genes are  same in…

Q: How does the protein SF 9G8 affect body fat in Drosophila melanogaster (fruit flies)?

A: Drosophila melanogaster is a fly species belonging to the Drosophilidae family. The species is often…

Q: e molecule of inheritance in all living organisms?

A: Inheritance can be defined as the process by which genetic information is passed on from parent to…

Q: Some people with neurofibromatosis develop blemishes on their skin, while others are severely…

A: Neurofibromatosis is a genetic disorder that causes tumors to form on nerve tissue. These tumors can…

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.