Anhidrotic ectodermal dysplasia is an X-linked recessive disorder in humans characterized by small teeth, no sweat glands, and sparse body hair. This trait is usually seen in men, but women who are heterozygous carriers of the trait often have irregular patches of skin with few or no sweat glands (see the illustration below). Q. Why does the distribution of the patches of skin lacking sweat glands differ among the females depicted in the illustration, even between the identical twins?

Q: X-linked, recessive disorder in which muscles waste away early in life, resulting in death in the…

A: X linked inheritance is a type of sex linked inheritance in which mutation occurs in one of the X…

Q: In female mamals, X chromosome inactivation often leads to phenotypic mosaicism. Assume that black…

A: Coat color in animals is controlled by either autosomal or sex-linked genes. Coat color is a…

Q: The mode of inheritance of the auricular hypertrichous trait in the Brown family is clearly an…

A: A genetic disorder known as auricular hypertrichosis manifests as strong, long hairs emerging from…

Q: Hemophilia is a X-linked/sex linked recessive trait in humans. The dominant allele (H) causes normal…

A: Himophilia is the disorder related to blood clotting. it is sex linked recessive disorder. So only…

Q: The following pedigree shows the inheritance of a human disorder. Affected individuals are shown…

A: A pedigree helps us to determine the inheritance of a trait across generations in a family.

Q: 5) Humans who have an abnormally high level of cholesterol are said to suffer from familial…

A: Introduction :- Familial hypercholesterolemia is an inherited disorder characterized by elevated…

Q: What are the expected phenotypic ratios in the F, generation? If one of the F, males is mated to an…

A: The cross is between red bar-eyed female and purple normal eyed male. The genotype of the female is…

Q: Give the phenotypic effects and chromosomal aberrations of the following syndromes/disorders: Down…

A: DOWN SYNDROME. Down syndrome is the most common chromosomal disorder due to the autosomal trisomy of…

Q: Both red/green color blindness (R=normal, r=colorblind) and Duchenne-type muscular dystrophy…

A: X-linked recessive inheritance is the genetic condition that can be passed from parent to child…

Q: What is the pattern of inheritance? Please Provide a specific reason that justifies your selection…

A: Pattern of anheritance could be autosomal or sex linked..Autosomal   inheritance means that the…

Q: How is the inheritance of X-linked traits different from the inheritance of autosomal traits? How…

A: The observable characteristics of an organism are known as phenotypes or traits. The phenotype…

Q: Please draw it out so I understand how it's suppose to be drawn

A: I hope this was helpful If any doubts please ask for clarificationPlease give helpful rating if you…

Q: (a) What pattern of transmission is most consistent with this pedigree? (1) autosomal recessive, (2)…

A: Pedigree  A family tree or chart that represents a person's genetic family history by symbols and…

Q: Colorblindness is inherited as an X-linked recessive trait while pattern baldness is controlled by…

A: Colourblindness is X linked recessive condition in which recessive allele h is present on X…

Q: In a woman who is a carrier of a mutant OTC deficiency allele, her sons who receive the mutant…

A: An alteration in the ornithine transcarbamylase (OTC) gene results in the genetic disorder known as…

Q: inheritance

A: Pedigree analysis is a crucial method used in genetics to understand the inheritance patterns of…

Q: The pedigree below shows a pedigree for a completely penetrant X-linked trait caused by a recessive…

A: The Pedigree shows X linked recessive trait. In this type of inheritance pattern the mutation lies…

Q: Table 8.1 shows that Turner syndrome occurs when an individual inherits one X chromosome but lacks a…

A: Chromosomal deletion syndrome occurs when whole or part of chromosomes are missing. Turner Syndrome…

Q: Explain why genetic disorders caused by recessive alleles of X-linked genes appear more frequently…

A: In humans and other mammals, biological sex is determined by a pair of sex chromosomes: XY in males…

Q: Father has hemophilia XY Mother is not a carrier Father does not have hemophila XY e the hemophilia…

A: HEMOPHILIA *It is a inherited genetic disorder that makes blood not to clot. * It makes the blood…

Q: Draw a Punnett square for the dihybrid cross. There are two known alleles of gene occupying a…

A: Dihybrid cross involves two genes in a cross. That's why the two traits are involved in this cross.

Q: The genotypes of a man and a woman are shown in the figure for an autosomal gene and an X-linked…

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

Q: Inheritance of sex linked recessive tralts Example: Hemophilia Inheritance of hemophilia is sex…

A: Hemophilia is a blood disorder which is caused by a mutation in gene that provide instructions to…

Q: The above image shows a pedigree for a monogenic inherited disease. Although this trait is only…

A: Pedigree analysis is a chart diagram that helps in studying the pattern of inheritance of genes from…

Q: Pedigree 2: A. What is the most likely mode of inheritance of this disease? Choose from: autosomal…

A: Since the parents are unaffected and children are affected it shows that the disease is recessive.…

Q: How many Barr bodies in a person with genotype XXXXX? How is the structure of a Barr body different…

A: The mammalian males contain XY chromosome and females contain XX chromosome. So, the number of…

Q: Classical hemophilia is a sex-linked disease caused by a recessive gene on the X chromosome.…

A: Hemophilia is a X linked recessive trait.  Let X allele encodes normal phenotype. And it is dominant…

Q: Colorblindness and hemophilia are both X-linked traits in humans. Explain how a female who has a…

A: Colourblindness and haemophilia are both X-linked traits in humans. Haemophilia is a bleeding…

Q: 1 In humans, red-green colorblindness is a sex-linked recessive condition. Show a cross between a…

A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…

Q: Color blindness is an X-linked recessive disease. A female and a male with normal vision have 4…

A: The failure to discriminate between red and green colors is the most common symptom of color…

Q: Consider the following pedigree, which traces the inheritance of a single-gene hereditary disease.…

A: Single gene herediary diseases are mainly caused by a change of any one gene in a particular DNA.Its…

Q: What is the approximate percentage chance that individual V.2, shown in the pedigree diagrams above…

A: A recessive attribute is one that may be detected within the relationship between 2 variants of 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: In humans, the allele for red-green color blindness is X-linked and recessive. An XY man with normal…

A: Color blindness is an X-linked, recessive genetic disorder that hampers the ability of a person to…

Q: Sickle cell anemia is inherited as an autosomal recessive condition. It also exhibits incomplete…

A: Sickle cell anemia (SCA) is a genetic disorder that occurs when an individual has two homozygous…

Q: Sex-linked or "X-linked" inheritance Using XG for the normal vision allele and X8 for the…

A: If the gene that produces the feature or condition is identified on the X chromosome, it is said to…