One form of familial hypercholesterolemia (FH) shows incomplete dominance.  Homozygous dominant individuals (HH) have normal cholesterol, heterozygous individuals have mildly elevated cholesterol and homozygous recessive individuals (hh) have severe FH.    If a woman with mild disease marries a man with no FH, what percent of their children will have severe FH? What percent will have mild FH? What percent will be normal?        A man with severe FH has three children with a woman who does not have the condition at all. What are the phenotypic ratios of the offspring?

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 homozygous dominant man with Marfan Syndrome, an autosomal dominant disorder, has children with an…

A: Marfan syndrome affects the essential parts of the human body, including the bone, eyes, nervous…

Q: Incomplete dominance is characterized by a cross between homozygous dominant and recessive genes…

A: B. There is 1/2 chance that the offspring will have blue-colored pupils and wavy hairs. is correct…

Q: Albinism is an autosomal (not sex-linked) recessive trait. A man and woman are both of normal…

A: Introduction Albinism Is A Genetic Condition That Causes A Person's Skin, Hair, And Eyes To Be…

Q: A person with sickle-cell anemia marries a healthy person without sickle cell anemia.  They have a…

A: Sickle cell anemia is a red blood disorders where the mutation caused some of the RBC to have sickle…

Q: What is the probability that their next child will be affected?

A: Cystic fibrosis is an inherited disease that leads to affecting the glands which results in mucus…

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: Sickle cell anemia is a blood disorder that is expressed with incomplete dominance. The homozygous…

A: Genes are generally referred to as the basic unit of heredity. They are a part of DNA and are…

Q: The allele for hitchhiker’s thumb (h) is recessive to straight thumb (H). If a man and his wife are…

A: Hitchhiker’s thumb is known to be one of the mysteries in genetics, other than it is a very rare…

Q: If an individual is bald, so you can't tell whether or not they have a widow's peak, but neither…

A: The widow's peak is a characteristic sign of male baldness. The front hairline recedes dramatically…

Q: In cats, coat color is determined by allelic variation at a single autosomal locus, with black fur…

A:

Q: Color blindness is known to be a sex-linked trait, which is recessive. Normal color vision is…

A: Colourblindness is a genetic disorder where the individual is incapable of differentiating between…

Q: Hemophilia is a sex-linked recessive trait in humans. If a father and a son are both hemophiliacs,…

A: Haemophilia is an sex-linked recessive disorder. As male is hemizygous for chromosome so one copy of…

Q: If two parents are homozygous for a genetically inherited recessive trait, what is the probability…

A: The genetic trait is a characteristic that is specific to an individual. A trait is determined by…

Q: Two affected daughters and two normal sons are born to an affected male and a normal female. Each of…

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

Q: Martin and Sue are contemplating having children, but Martin’s brother has an autosomal recessive…

A: A trait, disorder, or disease can be passed down through families in several ways. Autosomal…

Q: Hemophilia is an X-linked recessive disorder and blood type is autosomal.  If two healthy parents,…

A: Introduction  X linked inheritance is based on the sex chromosome (X chromosome). This inheritance…

Q: Colorblindness is a recessive gene. Does a person who is colorblind have a homozygous or…

A: Colorblindness is a X linked recessive trait. The gene is present on X chromosome.

Q: Sickle cell anemia is an inherited red blood cell disorder in which there are not enough healthy red…

A: Given: Sickle cell anemia - inherited red blood cell disorder. The allele that causes Sickle cell…

Q: Explain why the terms “dominant” and “recessive” in terms of genetic inheritance are…

A: Dominance represents the phenotype that is expressed in both homozygous and heterozygous genotypes.…

Q: A couple each with blood type AB and normal pigmentation have a child with AB blood type and…

A: Given: A couple each with blood type AB and normal pigmentation have a child with AB blood type and…

Q: If both parents are heterozygous for an autosomal trait (Aa), what is the probability that their…

A: The progeny inherit half of the genes from the father and half from the mother.  The gene content of…

Q: Imagine you have a blood group of "X" which is recessive and expressed by xx. The dominant blood…

A: Genetics is the study of genes, their interactions, and the effect of environment on genes. Broadly…

Q: Albinism is a recessive disorder where there is a lack of melanin. Andrea and her husband Claude…

A: Albenism is a recessive disorder it means it will express in an individual only in homozygous…

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: 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: Albinism is a recessive disorder where there is a lack of melanin. Andrea and her husband Claude…

A: Given information Albinism is a recessive disorder.  Andrea and Claude both have normal skin…

Q: Suppose two parents are healthy carriers of the sickle cell allele. The genotype of each parent is…

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

Q: Duchenne muscular dystrophy is a sex-linked recessive disorder characterized by a progressive loss…

A: Duchene muscular dystrophy is a X linked recessive trait. It is characterized by progressive loss of…

Q: f one parent is heterozygous for an autosomal allele (Aa), and the other is homozygous for the…

A: Dominant refers to the relationship between two versions of a gene. Individuals receive two versions…

Q: In humans, the alleles for unattached earlobes is dominant over the allele for attached earlobes.…

A: Two-factor or dihybrid is a cross between two organisms of a species to study the pattern of…

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: In humans, the allele for brown (B) eye color is dominant to the allele which causes blue (b) eyes.…

A: In human cells, two copies of each chromosome are present and these chromosomes carry two versions…

Q: If an individual has a widow's peak, which genotypes are possible? Homozygous recessive Unable to…

A: Widow's peak refers to the V-shaped arrangement of the hairline in the center of the forehead.

Q: In people with maple syrup urine disease, the body is unable tometabolize the amino acids leucine,…

A: The maple syrup urine disorder (MSUD) is a genetic disorder that is passed on from one generation to…

Q: Suppose "A" is a dominant gene and "a" is the corresponding recessive gene. One parent is…

A: Traits are inherited by genes. The genes coding for the different forms of the same trait is called…

Q: A couple is going to have a baby. They are concerned about sickle cell anemia, which results from…

A: Sickle cell anemia results from having the homozygous recessive combination of the sickle cell gene…

Q: Joe has a white cat named Sam. When Joe crosses Sam with a black cat, he obtains 1⁄2 white kittens…

A: In first-generation, 1/2 white kittens, 1/2 black kittens are only obtained of heterozygous dominant…

Q: Sickle cell anemia is a genetic disease that causes red blood cells to form incorrectly, slowing the…

A: People with sickle cell disease (SCD) begin to show symptoms during their first year of life,…

Q: If an individual does not have a widow's peak, which genotypes are possible for their offspring?…

A: An allele is a variant of the gene found at the same loci on the chromosome. An allele can be…

Q: Imagine that a couple is planning to have children. The male is heterozygous for Huntington’s…

A: Introduction Heterozygous means that you have inherited various versions of a gene from each parent.…

Q: If the loci for these two traits are very closely linked, which of the following possibilities would…

A: A dominant trait is an inherited characteristics that appears in an offspring if it is contributed…

Q: Hillary is 8 years old and has neuronal ceroid lipofuscinosis, also known as Batten disease. It is…

A:

Q: Which of the following statements about X-linked recessive patterns is true?   The X-linked trait…

A: An X-linked disorder is passed from a male to a female daughter. Since males have only one X…

Q: Trait A For Heliodors, having four arm-like extensions is dominant over having two. In a family of…

A: The required punnet square is shown in below step

Q: Among children with parents who are both carriers of Tay-Sachs, an autosomal recessive disorder,…

A: Tay Sacs disease is a genetic disease that causes the destruction of the cells of the nervous…

Q: human disease known as cystic fibrosis is inherited as a recessive trait. Two unaffected individuals…

A: Cystic fibrosis  It is a autosomal recessive genetic disorder in which affected organism produce…

Q: their future sons and daughters (calculate separately), what is the probability that they will be…

A: Autosomal gene means the gene is present in any one of the chromosomes except sex chromosomes…

Q: If an individual has no widow's peak, but both parents have widow's peaks, which genotypes are…

A: A genotype is an individual's collection of the genes. The term used for the two alleles inherited…

Hematology

Hematology is the branch of biology. Hematology is the medical field that deals with the treatment of blood disorders and cancers, such as hemophilia, leukemia, lymphoma, and sickle-cell anemia. Hematologists and hematopathologists are medical professionals who specialize in illnesses of the blood and its components.