In humans, Cystic Fibrosis is caused by a recessive allele on chromosomes 7. A person must inherit two of these alleles to have the disease. What are the chances of a child having the disease if both of the parents are heterozygous?

Q: How can gene duplications occur?

A: An extra copy of the gene is produced in the genome of the organism by the various process is known…

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: wo forms of hemophilia are determined by genes on the X chromosome in humans. Assume that a…

A: Hemophilia is an X-linked recessive disease characterized by the lack of normal blood clotting due…

Q: Hemophilia A, a condition in which blood does not clot properly, is a recessive trait located on the…

A: INTRODUCTION: It is given that a woman who is heterozygous for hemophilia A (XX h) marries with a…

Q: Bob and Joan know from a blood test that they are each heterozygous (carriers) for the autosomal…

A: A group of disorder that affects the hemoglobin is said to be sickle cell disease. An individual…

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: Cystic fibrosis is an autosomal recessive disorder caused by a defective gene that causes a thick…

A: The genotypic representation for cystic fibrosis can be done as below: CC = Normal, Cc =…

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: Hemophilia A is transmitted by an X-linked recessive gene.With an affected father, what is the…

A: Answer: Introduction: In X-linked recessive disorders, an affected father has a mutation in a gene…

Q: 1 2 II 2 3 4 5 6 7 8 III 1 2 3 4 5 6 7 8 9

A: Huntington's disease is an autosomal dominant disease which means only one allele would suffice to…

Q: arts a) through c) below. ays written with the dominant gene first. Therefore, there a nd the father…

A: Sickel cell anaemia is an autosomal recessive. Nomal allele=S Sickle cell anaemia =s

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

A: 50 percent chances.

Q: In a cross between an individual with Huntington disease and an unaffected individual, what are the…

A: Huntington disease is a progressive brain disorder that causes uncontrolled movements, emotional…

Q: People with trisomy 21 develop Down’s syndrome. What law of Mendelian inheritance is violated in…

A: A gene is the fundamental physical and useful unit of heredity. Genes are comprised of DNA. A few…

Q: Cystic fibrosis is a disease that is passed down through the generations. The recessive alleles for…

A: Genes carry the traits from one generation to another. Genes that code for different forms of a…

Q: Albinism is a recessive trait. Two individuals who both have normal pigmentation have one child out…

A:

Q: If a father has Marfan syndrome, a dominant disorder, and passes it down to all of his children, but…

A: The skeleton, blood vessels, heart, and eyes are all impacted by Marfan syndrome. Marfan syndrome…

Q: Hereditary canine spinal muscular atrophy (HCSMA) is a motor neuron disease in Brittany Spaniels.…

A: Hereditary Canine Spinal Muscular Atrophy (HCSMA), a motor neuron disease affecting Brittany…

Q: If someone has Marfan syndrome, what are their genotypes? If that person has children who do NOT…

A: Marfan syndrome is a systemic connective tissue disorder. It is caused by the mutation of…

Q: Albinism and sickle cell anemia are both autosomal recessive disorders that are expressed only in…

A: Albinism - genotype be A and a.  aa is diseased, Aa is the carrier and AA is not affected.  Sickle…

Q: Albinism is an autosomal recessive condition characterized by absence of melanin pigment from the…

A: Albinism is a group of genetic disorders characterized by a lack of melanin, the pigment that gives…

Q: Hemophilia is a recessive sex-linked trait in humans.  Sickle-cell anemia is a recessive trait on an…

A: Hemophilia is X linked recessive disorder in which blood continuously flows because of absence of…

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: Charles has achondroplasia dwarfism (autosomal dominant) but his wife is normal. What is the…

A:

Q: If both parents carry one copy each of the mutation that causes Huntingtons , what are the odds that…

A: Huntington disease is the neurodegenerative disorder, it causes breakdown of nerve cells in the…

Q: YOUR SISTER DIED FROM TAY-SACHS DISEASE, INHERITED AS A RECESSIVE ALLELE (t). you're married and…

A: Answer: Tay Sach's Disease : It is the rare genetic recessive disorder, which can be transferred…

Q: Hypophosphatemia is a dominant genetic disorder caused by a deficiency of phosphates in the blood.…

A: X-linked genetic disorders can either be recessive or dominant. In this example we can conclude that…

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

A: The father is a haemophiliac given by recessive genotype Xh Y , The daughter of this person is…

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: A woman with blonde hair and blues eyes, which are recessive genes, marries a heterozygous man who…

A: Traits are characteristic features that are unique to particular individual . As per the question ,…

Q: Acatalasia is caused by a rare autosomal recessive gene. In heterozygous condition catalase activity…

A: Acatelasia is a genetically inherited disorder that causes lowering or absence of production of the…

Q: Hemophilia is a recessive sex-linked disorder (Xh). A man with hemophilia and a female carrier are…

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

Q: Porphyria is a genetic disorder caused by the inability to properly metabolize a component of…

A: A gene is a piece of genetic material that resides in a specific location on a chromosome. By…

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…

Q: Using just the information on this pedigree, is Huntington’s disease caused by a dominant allele or…

A: As per the honor code, we answer only three sub-parts at a time. So, we are answering the first…

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.