Haemophilia is a genetic disorder caused by a recessive allele on the X chromosome. A haemophilia female marries a normal male. Explain why all their sons will be haemophilia.

Q: The picture below represents a G1 cell from a newly discovered species that uses the X/Y sex…

A: The cell is in G1 phase and hence it undergoes the S phase to duplicate the DNA. Thus, homologous…

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: Suppose that a female with the mutation (i.e., a heterozygous female) mates with a healthy male (the…

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

Q: A woman develops Huntington's disease and already has 3 children. What is the chance that the mother…

A: Huntington’s disease or Huntington's chorea is a muscular and mental disorder. There is a gradual…

Q: A man with red-green color blindness marries a woman who is not color blind. They have 3 children,…

A: Color blindness is basically a genetic disorder which can be inherited from parents.These patients…

Q: Hemophilia is an X - linked , recessive trait . If a man who is normal , mates with a woman who is a…

A: Inheritance pattern is a type of pattern which determines how traits are transmitted from parent…

Q: Achondroplasia, which is characterized by difficulty converting cartilage to bone and thus results…

A: Hhsbanf is colorblind i.e XcY  Wife is carrier as their son and daughter both are affected .i.e XCX…

Q: A cross was performed between a female curly winged fly and a normal (straight) winged male fly.…

A: As per the question, a cross was performed between a female curly winged fly and a male straight…

Q: Hemophilia is a disease caused by a gene found on the X chromosome. Therefore, it is a sex-linked…

A: If the woman  gets the X chromosome with the hemophilia gene, she will have hemophilia . A man who…

Q: A couple is both heterozygous for the autosomal recessive disease cystic fibrosis (CF). What is the…

A: Autosomal recessive inheritance pattern is a type of inheritance pattern in which the disease is…

Q: Explain how twins could have the same genetic material but not look exactly the same or have the…

A: The development of twins occurs due to multiple pregnancies. Twins can be categorized into different…

Q: Hemophilia results from a sex-linked gene. The disease is most common in males, but the hemophilia…

A:

Q: For a recessive X-linked mutation, such as colorblindness, explain the pattern of inheritance from…

A: Recessive X-linked mutation can be defined as the type of mutation which occurs in the X chromosome…

Q: Geneticists are concerned about three different genetic conditions present within their family.…

A: Autosomal dominant A = achondroplasia  a = average height  AA and Aa = affected aa = normal    X…

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

A: 50 percent chances.

Q: Autosomal Dominant Disorder: Huntington's Disease 1. Huntington's disease is a neurological disease…

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

Q: Wilson’s disease is an inherited disorder in which there is too much copper in the body’s tissue. It…

A: A pedigree chart is a graphic that depicts the incidence and emergence of phenotypes of a certain…

Q: A woman develops Huntington's disease and already has 3 children. What is the chance that the mother…

A: Huntington’s disease or Huntington's chorea is a muscular and mental disorder. There is a gradual…

Q: A female has a family history of Duchenne muscular dystrophy, a recessive sex- linked condition that…

A: Since, the disorder is sex linked recessive, we have,  Genotype of affected female - XDXD Genotype…

Q: Achondroplasia, which is characterized by difficulty converting cartilage to bone and thus results…

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

Q: Answer the question(s) in reference to the five disorders listed below: Affected males tend to be…

A: A genetic disorder is a condition caused by an abnormality or mutation in an individual's DNA or…

Q: Constructing and Using a Pedigree Duchenne's muscular dystrophy (DMD) is a well known, lethal…

A: A pedigree chart is a graphic that depicts the incidence and emergence of phenotypes of a gene or…

Q: Sex linkage refers to genes which are linked to each other on the sex (X or Z) chromosomes.

A: The chromosomes that are present in the diploid cells of the sexually reproducing animals are…

Q: In humans, hemophilia is a sex-linked recessive disease, and the gene is located on the X…

A: Hemophilia is a sex-linked recessive disease. This means that in order to produce a diseased…

Q: Mutations of the CFTR gene causes ( Cerebral Plasy or Cystic Fibrosis or Craniofacial timbrosis or…

A: Mutations of the CFTR (Cystic Fibrosis Transmembrane Conductance Regulator) gene primarily cause…

Q: Tay-Sachs disease is a metabolic disorder that results in deterioration of the brain and nervous…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

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: Bart and Jenny, have been arguing about the cause of their baby's aneuploid condition. Bart was 5…

A: X Linked Inheritance When the disease-causing gene or allele is present on the Sex chromosome…

Q: Amy Alvarez had a recessive X-linked chromosome for a disorder such as, hemophilia, and said that…

A: Amy Alvarez is wrong , she need to more information.

Q: Hemophilia is a X-linked genetic disorder causing blood clotting problem. A dominant allele on the X…

A: The alleles are generally of dominant and recessive type and some other forms like codominant are…

Q: Amy Alvarez had a recessive X-linked chromosome for a disorder such as, hemophilia, and said that…

A: Amy Alvarez has a recessive X linked chromosome disorder.  She is having hemophilia.

Q: Achondroplasia, is characterized by difficulty converting cartilage to bone and thus results in…

A: Color blind is X linked recessive trait.  C = color blind c = normal XCXC = normal female  XCXc =…

Q: Muscular dystrophy is a group of disorders that involve muscle m weakness and loss of muscle tissue…

A: Introduction :-. Muscular dystrophy (MD) is a group of genetic disorders characterized by…

Q: Haemophilia is an X-linked recessive disorder. If a woman is a carrier for haemophil. and has a…

A: Hemophilia is basically an inherited bleeding disorder in which the blood doesn't clot properly,…

Q: man with male pattern baldness, which is a recessive gene, marries a woman who is a carrier of this…

A: Cross is always done in a punett square. The recessive character is only expressed in humans as…

Q: Piebaldism is a skin condition that causes an infant to be born with white birthmarks due to a…

A: It is an autosomal dominant genetic disorder. It is mainly due to the absence of melanocytes of the…

Q: Hemophilia is a sex-linked recessive disorder (the gene locus is on the X-chromosome), in which the…

A: Hemophilia is a rare disorder in which your blood doesn't clot normally because it lacks sufficient…

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: A man and woman are both heterozygous for the recessive allele that causes cystic fibrosis. What is…

A: We all know that cystic fibrosis is an autosomal recessive disorder that means the genotype of the…

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.