In pedigrees, individuals are usually specified by using a Roman numeral for their generation in the chart and an Arabic number for their position (reading left to right) within that generation. If we use the letter c for the allele that causes cystic fibrosis, what are the genotypes of individuals III-3 and III-4 (the third and fourth individuals shown in generation III) in the pedigree that shows this disease?

Q: Farmer Brown had two hogs, Olga and Hank.  Olga and Hank were normal, healthy hogs, but whenever…

A: Ogla and Hank must be both heterozygous for the condition. That is why they are producing some…

Q: This pedigree depicts the inheritance of the mitochondrial disease Leber hereditary optic neuropathy…

A: Inheritance through mitochondria is a special type of inheritance. The genetic deformity is in…

Q: There is an autosomal gene in cats that controls whether or not they also have white patches of fur…

A: As you have not mentioned the previous ques I have solved the question with given data

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A: A trait is a characteristic that is unique for particular individual . In this , trait is cleft chin…

Q: The individuals with a certain disease are shown in this pedigree. The disease is caused by an…

A: By analyzing a pedigree, we can determine genotypes, identify phenotypes, and predict how a trait…

Q: Wilson's disease is an inherited disorder caused by a mutation in the ATP7B gene. Individuals…

A: From the given pedigreees we can identify the mode of inheritance of Wilson's disease. In both…

Q: One parent with the Achondroplasia phenotype and a normal parent have 2 children. Both children have…

A: Achondroplasia is a type of osteochondrodysplasia in which the cartilage at the ends of the limb…

Q: Huntington disease is a rare dominant disorder that causes neurodegeneration later in life. In a…

A: Huntington's disease is. also known as Huntington's chorea.  It is a rare and progressive…

Q: The allele for albinism is recessive to the allele for normal skin pigmentation. All individuals who…

A: An inherited disorder that presents with little or no melanin production, which results in either…

Q: Marfan’s syndrome is an example of pleiotrophy where individuals with a copy of the dominant allele…

A: It is an inherited disorder that  affects the connective tissues of the body. It is  caused by a…

Q: What is the penetrance of this trait? i.e., What is the ratio between the number of individuals in…

A: The term "penetrance" refers to the rate at which a given gene is present in a population and…

Q: In humans, the genetic disease cystic fibrosis is caused by a recessive allele (a). The normal…

A: Cystic fibrosis is only caused when both of the mutant alleles for cystic fibrosis are present. AA…

Q: Galactosemia is an autosomal recessive human disease that is treatable by restricting lactose and…

A: Let,  G - allele for normal galactosemia gene g - allele for recessive galactosemia allele.  Since,…

Q: We have dealt mainly with only two genes, but the sameprinciples hold for more than two genes.…

A: a) To find: What proportion of progeny will phenotypically resemble (1) the first parent (2) the…

Q: The pedigree below shows the inheritance of the rare blistering disease (epidermolysis) in dogs.…

A: Introduction A gene exists in two alternative forms called allele. If both the alleles of a gene is…

Q: Among dogs, short hair is dominant to long hair and dark coat color is dominant to white (albino)…

A: The Chi-square test is a statistical test and is commonly used to find if there is a significant…

Q: Hemophilia is caused by an X-linked recessive mutation in humans. If a woman whose paternal uncle…

A: In the disease called “haemophilia”, if a wound is created, the blood does not clot normally. This…

Q: The pedigree below tracks a genetic abnormality through five generations of a family tree. The…

A: Polydactyly is an abnormality characterized by extra fingers or toes. It is a genetic trait and is…

Q: The following family pedigree shows individuals afflicted with a metabolic disease. Suppose the male…

A: square represents male and the circle represents females.

Q: Duchenne muscular dystrophy is an inheritable disorder that results in muscle weakness, leading to…

A: Dichenne muscular dystrophy is a Genetic disorder which show X linked recessive inheritance pattern.…

Q: In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: PKU is an inherited disease caused by a recessive allele. If a woman and her husband, who are both…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: Based on the following pedigree, a) what is the mode of inheritance and b) what is the genotype of…

A: The pedigree shows autosomal dominant inheritance Autosomal inheritance because of chances of…

Q: Using the pedigree, assume th

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Q: A person is heterozygous for the Freckles phenotype (Ff) and also heterozygous for the PTC-tasting…

A:

Q: Tay-Sachs disease is caused by loss of function mutation in a gene on chromosome 15 that codes for…

A: Tay-Sachs disease is a rare inherited disorder and this is due to mutation occurring in HEX A gene…

Q: lease consider the following pedigree. Assume that people who marry in to the family do not carry…

A: The pedigree indicates if the DNA is passed down unchanged from generation to generation. It can…

Q: a) Given the phenotypes below, which genotypes can you determine with certainty? Justify your…

A: ABO blood types used to identify the presence of antigens. There could be the presence of one, both…

Q: Without referring to the notation used to write the genotypes, how are you able to tell that a gene…

A: All these are defined by the Alleles they inherit and the type of phenotype they show  These can be…

Q: The pedigree below shows three generations of a family that carries albinism, an autosomal recessive…

A: Pedigree chart: It is a chart that shows the family genetic history. It is used to determine the…

Q: a. What is the mode of inheritance for this rare disorder and what is the genotype of I.1 and I.2?…

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Q: Below is a pedigree of a human genetic disease in which solid color indicates affected individuals.…

A: In the given pedigree, atleast one member in all generations have the disease. Therefore,…

Q: What is the probability that John is a carrier? probability: What is the probability that both John…

A: First and foremost, the pedigree should be complete. It should be noted that both john's father and…

Q: The attached image is a pedigree of a family with a history of sickle cell anemia (the individuals…

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Q: Given the pedigree below, answer the following questions. Note that filled symbols represent…

A: Typically, at most one member of the family has a genetic condition, and analyzing the pedigree can…

Q: Based on the observed inheritance pattern and ratio of phenotypes, what are the genotypes of the…

A: Mutations in the CFTR gene lead to the genetic condition known as cystic fibrosis (CF). The CFTR…

Q: *Cystic fibrosis is a rare autosomal recessive condition. A phenotypically normal man whose father…

A: Mendel proposed three laws based on his research. His research provided a picture of the independent…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.