There are now nearly 200 recognized breeds of dog, from the Affenpinscher to the Yorkshire Terrier. But several of these suffer from medical problems due to the inbreeding required to establish the breed. For example, nearly every Cavalier King Charles (discussed in the Biology and Society essay) suffers from heart murmurs caused by a genetically defective heart valve. Such problems are likely to remain as long as the organizations that oversee dog breeding maintain strict pedigree requirements. Some people are suggesting that every breed be allowed to mix with others to help introduce new gene lines free of the congenital defects. Why do you think the governing societies are resistant to such cross-breed mixing? What would you do if you were in charge of addressing the genetic defects that currently plague some breeds?

Q: With use of Punnett diagrams discuss how the results of experiments carried out by Austrian monk…

A: Mendel from his crosses concluded that in a monohybrid cross when a cross is made between the…

Q: In dogs, Gene B specifies a protein required for eumelanin (dark pigment) deposition. Protein B…

A: A variable form of a gene is known as an allele. Some genes exist in several distinct versions, all…

Q: when bred together produced 12 hearting puppies and 4 deaf puppies. What are the genotypes of all…

A: Congenital deafness in dogs (or other animals) can be acquired [caused by intrauterine infections,…

Q: A breeder comes to you with a female cat (Fifi) affected with a disease. This cat has an affected…

A: Introduction :- Typically, pedigrees are used to illustrate straightforward dominant and recessive…

Q: In cocker spaniels, black color (B) is dominant over red (b), and solid color (S) is dominant over…

A: Cocker Spaniels are dogs belonging to two breeds of the spaniel dog type. The genetic composition of…

Q: Draw a pedigree of either your family OR a famous family such as the Weasley’s, the Skywalker’s, the…

A: I am drawing a pedegree of my family. I have the attached earlobes and both of my parents have free…

Q: An ecologist has been following three single gene traits in laboratory breeding experiments of…

A: As per the honor code, we answer only three subparts at a time. Therefore, we are answering the…

Q: On a summer trip to the Galapagos you collect two finch species, Geospiza fortis and G. pauper and…

A: Geospiza pauper is also known as medium tree finch, categorized under critically endangered.

Q: Analyze a cross and identify non-Mendelian pattern of inheritance in non-allelic genes (normal…

A: Answer : a) recessive epistasis Recessive epistasis is a condition in which the expression of first…

Q: Albinism is a recessive trait in humans.A geneticist studies a series of families in which both…

A: Exceptions to the Mendelian pattern of inheritance are many in number, which are important to study…

Q: Kidney stones are usually located in the renal pelvis. What affected would have this on urine flow…

A: Kidneys are involved in the removal of wastes (minerals or salts) and fluid from the blood in the…

Q: What is meant by the term ‘breed’? What are the objectives of animalbreeding?

A: Animals have long been used by man for various purposes, e.g. transport, wars, agriculture and for…

Q: An ecologist has been following three single gene traits in laboratory breeding experiments of…

A: Given, There is Texture and Color of the skin and the extent of webbing between the digits. The…

Q: student whose hobby is fishing pulled a carp out of Cayuga Lake that was very unusual: it had no…

A: Mandel's Law Of Inheritance:  The process by which a kid inherits genetic information from a parent…

Q: While stuck at home in quarantine, several Bi213 students decide to conduct an experiment using…

A: These are the statistical tests that help us to determine inheritance patterns of a trait by…

Q: 3). The habitats of Florida panthers have been broken up by freeways and other forms of development,…

A: Answer :- The Florida panther population faces a critical conservation challenge due to the…

Q: House cats normally have 18 toes. However, they can have up to 27 toes. The condition of having more…

A: Genetic drift is a mechanism of evolution that causes changes in the frequencies of alleles in a…

Q: While studying the genetics of the "Cute Faced Bat" face structure gene, three alleles (CO, CN, CF)…

A: An allele is a gene's alternative version that exists on the same locus. Each gene only has two…

Q: A planet is inhabited by creatures that reproduce with the same hereditary patterns seen in humans.…

A: T =height for tall and t =dwarf A = head appendages (antennae) and a =no antennae S = upturned snout…

Q: When you are visiting the local pet store you start talking to them about their Ceti alpha-5 eel…

A: Gregor Mendel gave three principles of inheritance. The dominance is a concept where one allele of…

Q: Since we are all so closely related, it is amazing that we see such tremendous diversity in the…

A: The skin, eye, and collagen show great diversity. The skin colors in different regions are different…

Q: In your experiments with Drosophila, you found that the wildtype allele that codes for grey adult…

A: A person exhibiting a dominant phenotype may have a total of two copies of the dominant allele or a…

Q: An ecologist has been following three single gene traits in laboratory breeding experiments of…

A: The genes of an individual do not operate isolated from one another, but obviously are functioning…

Q: Sometimes, genetic make-ups do not show up as traits. Let us assume Jane has beautiful brown eyes.…

A: Given:  Phenotype of Jane's father - blue eyes. Since her father has pure bred blue eyes, he is…

Q: Pink eye and albinism are two recessive traits found in the deer mouse, Peromyscus maniculatus. In…

A: In this case, albinism and pink eye color are recessive traits found within the deer mouse…

Q: Look at the F1 generation in Figure 21.7 in both your book and the powerpoint lecture. Explain how a…

A: A cross between a homozygous mouse and a heterozygous mouse has been performed here. The homozygotes…

Q: A student whose hobby is fishing pulled a carp out of Cayuga Lake that was very unusual: it had no…

A: Mandel's Law Of Inheritance: The process by which a kid inherits genetic information from a parent…

Q: 1 A) . If green is dominant wt (Y) and yellow is a recessive mutant condition (y), depict a Yy…

A: Introduction :  A square diagram known as the Punnett square is used to predict the genotypes of a…

Q: Table 3. Common Single Gene Cha

A: Genoypes can be ascertained by either puting the same two alleles together that is this would be the…

Q: The complete absence of one or more teeth (tooth agenesis) is a common trait in humans-indeed, more…

A: The pedigree analysis helps us identifying the mode of inheritance of a particular disease by…

Q: Tay-Sachs disease is a recessive genetic disease. Individuals with this disease rarely survive past…

A: An uncommon hereditary condition that impacts the brain and spinal cord is called Tay-Sachs disease.…

Q: Identify two (2) differences between a genetic cross in humans and Mendel's experiments in peas

A: A difference between a genetic cross in humans and Mendel's experiments in peas is s as follows :…

Q: Brachydactyly is a genetic condition of dogs where the outside toes on the front feet are abnormally…

A: In beachydactyly, the dog's feet are found to be small. It is encoded by the recessive allele b. The…

Q: In humans, the allele for a widow's peak (W) is dominant to the allele for a straight hairline (w).…

A: Homozygous refers to a genetic condition where an individual possesses two identical alleles for a…

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.