A couple finds out that both the male and the female are heterozygotes (carriers) for Tay Sachs. Draw a punnet square for this couple. What is the likelihood that this couple will have an offspring with Tay Sachs?

Q: Hemophilia is a typical example of Sex-Linked Inheritance. If the man is hemophilic and marries a…

A: Haemophilia is also known as bleeder's disease. This disease was first studied by John otto in the…

Q: A woman who is type O gives birth to a baby who is also type O. In a paternity case, a man claims…

A: There are four major blood teams (blood types): A, B, AB, and O. The genes you inherit from your…

Q: 3) Queen Victoria of England, who ruled from 1837-1901, is believed to have been the carrier of…

A: Hemophilia is a X linked recessive trait. The XH allele is dominant over Xh allele.

Q: Jane has type O blood. Her child has type O blood. George's blood type is homozygous B. Could George…

A: The ABO blood group system is present in human beings. There are four blood groups in the system,…

Q: What is the probability that a parent with Type O blood and a parent with Type AB blood have a child…

A: The blood group of humans is controlled by multiple alleles IA, IB & IO IA & IB are…

Q: A man with thalassemia minor marries a normal woman.  What phenotypic ratios of thalassemia-affected…

A: Thalassemia is an inherited blood disorder in which the body makes an abnormal form of hemoglobin.…

Q: Because Elsa has received a confirmed diagnosis of beta-thalassemia major, which of the following…

A: Beta thalassemia is an inherited blood disorder. This means it is passed down through the parent’s…

Q: Mr. and Mrs. Smith, both 40 years of age, are healthy with no knowngenetic conditions. Their newborn…

A: Down syndrome is defined as the condition in which an individual contains an extra chromosome. In…

Q: A woman has type O blood.  Her child has type A blood.  Could a man with AB blood type be the…

A: Blood is an important fluid tissue in the body that transports oxygen and nutrients to all other…

Q: Neither Tim nor Rhoda has Duchenne muscular dystrophy, but their firstborn son does. What is the…

A: Dominant and recessive traits exist when a trait has two different forms at the gene level. The…

Q: A form of hemophilia is caused by a sex-linked (X-linked) recessive gene. A phenotypically normal…

A: 50 percent chances.

Q: Stefan has launched a paternity suit to determine whether he is the father of an orphan residing in…

A: Stefan has launched a paternity suit to determine whether he is the father of an orphan residing in…

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: b) Figure 2 shows a family tree in which the blood group of certain individuals have been…

A: Alleles are the  alternative forms of a gene that occupies the same locus of homologous chromosome…

Q: In humans, the allele for normal blood clotting, H, is dominant to the allele for hemophilia, h. The…

A: Given that, hemophilia is X linked trait. The normal dominant allele for blood clotting is H and the…

Q: What is most likely the woman's genotype?

A: The human blood group system is classified based on the ABO blood group system. Thi is mainly done…

Q: A man with type A blood has children with a women with type B blood. Their first child has type O…

A: The external appearance of an individual for any trait is called the phenotype. The genotype is the…

Q: mother has A blood type has a child of B blood type. What are all the possible genotypes of the…

A: Some character is shown when alleles are present in homozygous form(Dominant/ recessive) while some…

Q: Wilma and Wally have one male child who has been diagnosed withDuchenne muscular dystrophy, an…

A: Duchenne muscular dystrophy is a medical condition of muscular dystrophy which is caused by DMD gene…

Q: Two parents who do not have a condition have a daughter who has the condition. Which of the…

A: Gregor Mendel recognized that there are two hereditary factors. The terms gene and allele were yet…

Q: In humans, the allele for normal blood clotting, H, is dominant to the allele for hemophilia, h. The…

A: Hemophilia is an inherited condition of bleeding. Children with haemophilia cannot stop bleeding…

Q: From this pedigree is it dominant or recessive. Is ur autosomal or sex-linked?

A: Pedigree is define a diagrammatic representation of the individuals of a family for a particular…

Q: Justin has blood type O. His wife Alyssa is blood type AB. Alyssa has baby June who is blood type O.…

A: There are mainly four main blood types ie A, B O, and AB . It determind by the antigens and…

Q: Trisha (mother of the baby) Charlotte (baby) Ronnie (Trisha's husband) Johnny (the grad student)…

A: I) Origin of bombay blood group  is in Mumbai in 1952.

Q: Hemophilia is another example of an X-linked disease caused when a recessive allele (Xh) is…

A: Hemophilia is a bleeding disorder;which shows X linked recessive pattern of inheritance as the…

Q: A woman with blood type B gives birth to a child with blood type B. Could a man with type A blood be…

A: The man with blood type A could be father of the child in case he is heterozygous for the blood type…

Q: If a normal male reproduces with a heterozygous normal female, what are the expected genotypes and…

A: Hemophilia is a common hereditary coagulation blood disorder due to deficiency or reduced activity…

Q: Could a father who has blood type A and a mother who has blood type B possibly have a child who has…

A:

Q: Can a child have blood group O if his parents have 'A' and 'B'.explain.

A: Introduction: Blood type or blood group is a classification system defining the presence or absence…

Q: A mother just received the news that she is carrying an octuplet, determine the probability that the…

A: Number of total babies mother is carrying = 8 Probability of having the first baby of girl or boy =…

Q: Suppose gene B is X-linked and is embryonically lethal when homozygous or hemizygous recessive. A…

A: Let us first discuss the terms used in the question, Homozygous:- A condition when two copies of an…

Q: Human blood types are genetically determined. A male and a female both have blood type AB. If they…

A: In humans, the blood group is of four types A, AB, B, and O. All these are determined genetically.…

Q: Hemophilia is determined by genes on the X chromosome in humans. Assume that a phenotypically normal…

A: Hemophilia is an X-linked recessive condition defined by the inability to clot normally due to a…

Q: Hemophilia A is an X-linked trait where blood clotting is affected due to a mutation in a clotting…

A: Hemophilia is a genetic disorder which slows down the process of blood clotting. It is X linked…

Q: Jan and Michael are both carriers for the cystic fibrosis allele. If Jan and Michael have five…

A: Introduction Cystic fibrosis (CF) is a genetic disorder, which means it is transferred from…

Q: Can a son be a carrier for an X-linked trait? Explain.

A: The genetic makeup of an offspring is determined by the genetic makeup of both parents; that is, the…

Q: If the mother is blood type AB , the father is Blood type O . Could the daughter who has type O be…

A: As per the question, the mother has blood group AB and the father has blood group O. Thus their…

Q: Muffy, a color blind female with blood type A (heterozygous to type O) is married to Biff, who is…

A: Given: Muffy, a color-blind female with blood type A (heterozygous to type O), married to Biff, who…

Q: A patient has two parents with Huntington's disease. They may not have inherited this autosomal…

A: The Huntington's disease is a very rare condition and is an inherited disease which results in…

Q: Color-blindness is an X-linked, recessive trait. If a normal-sighted woman, whose father was…

A: These are the mode of inheritance in which a mutation in a gene X causes the phenotype to be always…

Q: Below is a pedigree chart for a family that has a history of Alkaptonuria.   Individuals infected…

A: Pedigree analysis is a method to identify the inheritance of a genetic trait across generations.…

Q: If a girl has a blood type O and the mother has blood type A, what are the possible blood types of…

A: A genetically based trait is one that is passed down through the generations. Mendelian genetics…

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.