Jane is heterozygous for both X-linked traits like her mother. Her father is normal for both X-linked traits. James has a mother who suffers from G6PDD but not from fragile X-syndrome. His father does not exhibit any X-linked disorder but has amelogenesis imperfecta.     What are the genotypes of the following:  Jane: ______________________       James: ______________________ Jane’s mother: _________________       James’ mother: ________________ Jane’s father: __________________        James’ father: _________________

Q: The autosomal (not X-linked) gene for brachydactyly, short fingers, is dominant to normal finger…

A: Brachydactyly is an autosomal dominant trait. Normal = bb Affected = BB, Bb

Q: Now assume that the pedigree shown in question 1 shows the inheritance of a rare genetic disease.…

A: The mode of inheritance is a pattern of obtaining parentral alleles  or genes to the offsprings. The…

Q: The following X-linked recessive traits are found in fruit flies:vermilion eyes are recessive to red…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Which of the following statements best describes the inheritance pattern of an X-linked dominant…

A: Pedigree is a family chart showing the inheritance of a particular trait through several generations…

Q: Fragile X syndrome is an X-linked recessive Achondroplasia is an autosomal dominant trait…

A: Gene expression

Q: If an individual has the dominant phenotype for an x-linked trait, what is/are the possible…

A: The X linked traits are encoded by the genes present on the X chromosome. Whereas autosomal traits…

Q: Recessive alleles may be expressed in a child if they are inherited ... (Choose all that apply)…

A: X-linked Recessive diseases are those genetic diseases that are caused by the mutation of genes on…

Q: The bald phenotype which is due to a dominant autosomal gene the expression of which is sex…

A: Sex influenced trait are the traits that are controlled by sex chromosome but are exhibited on the…

Q: In humans color vision is X-linked, the gene for color vision is located on the X chromosome but is…

A: Colour blindness is a X linked Recessive disorder in which presence  of gene n on X chromosome is…

Q: In a paternity suit, a woman with type O blood claims that a man with type AB blood is the father of…

A: ABO blood group is a case of multiple alleles and co-dominance. When there are more than two alleles…

Q: Male-pattern baldness is an X-linked recessive trait (Xb). A father with a genotype XBY and a mother…

A: The DNA (deoxyribonucleic acid) is the hereditary material of an organism. The DNA is a part of the…

Q: Red–green color blindness is an X-linked recessive trait. Susan has normal color vision, but her…

A: Color blindness is defined as the inability of the person to distinguish between colors, especially…

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

A: Introduction  Transmission of characters/genes from parents to offspring is referred as Inheritance.…

Q: Complete the pedigree provided to depict transmission of an X-linked recessive trait, by filling in…

A: The pedigree indicates if the DNA is passed down unchanged from generation to generation. It can…

Q: What will be the sex of an individual who is easily affected by an X-linked recessive trait? Why?

A: Sex chromosomes carry the genes to determine the gender of an organism.

Q: Ichthyosis is a rare X-linked recessive disorder that is characterized by scaling of the skin around…

A: Note- we are supposed to answer 3 subpart of a question according to our guidelines. So please…

Q: Consider the following phenotype for hemophilia, a recessive X-linked blood clotting disorder, in…

A: A gene is a unit of genetic material present within the DNA (deoxyribonucleic acid). Each gene…

Q: Red-green color blindness is an X-linked recessive disorder. A woman with normal vision whose father…

A: Color blindness is the decreased ability to see differences in color. Males are more likely to be…

Q: Consider the following phenotype for hemophilia, a recessive X-linked blood clotting disorder, in…

A: X-linked recessive inheritance is a mode of inheritance in which a mutation in a gene on the X…

Q: Amanda Sefton (Daytripper) has normal fingers and toes and normal color vision. Her mother is normal…

A: As father of Amanda is colour blind, so Amanda may be a carrier of the disease, so her genotype for…

Q: On average, what proportion of X-linked genes in the first individual are the same (inherited from a…

A: The X-Y system of determination of sex is observed in mammals. The sex-liked inheritance contains…

Q: Red-green color blindness is an X-linked recessive trait in humans. Polydactyly (extra fingers and…

A: Red-green color blindness is an X-linked recessive trait it can be depicted as X^c. Polydactyly is…

Q: Y-linked Amelogenesis imperfecta (A), a congenital disorder that affects the formation of the teeth…

A: Given: Amelogenesis imperfecta, Y-linked (A) congenital disorder. Hypophosphatemia (H) X-linked…

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

A:

Q: X-linked disorders (like hemophilia) are more likely to affect people of one gender than the other.…

A: Haemophilia is one of the X-linked recessive hereditary genetic diseases, which occur when the gene…

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: An unaffected woman, who is heterozygous for an X-linked allele causing Duchenne muscular dystrophy,…

A: Duchenne muscular dystrophy is a genetic disease which is inherited in a X-linked recessive manner.…

Q: Duchenne Muscular Dystrophy is an X-linked recessive disease. A couple is wanting to have a child.…

A: Duchenne muscular dystrophy is the most common childhood form of the disease; it occurs in one of…

Q: A man and a woman do not have hemophilioa, but the womans father did. (Hemophilia is X-linked…

A: (Note: According to the given guidelines, we are supposed to answer only one question. Please repost…

Q: A) Calculate the map distance separating the three genes B) Which gene is in the middle?

A: Symbol  white eyes = r short wings = l  ebony bodies = g    red eyes = R long wings = L  Gray bodies…

Q: A stray pregnant female cat sneaks into your open bedroom window and has four kittens in your sock…

A: Phenotypic traits that are related to genes on the X chromosome are referred to as X-linked traits.…

Q: Anhidrotic ectodermal dysplasia is an X-linked recessive disorder in humans characterized by small…

A: Anhidrotic ectodermal dysplasia (AED) is a type of immune deficiency observed in the human body. The…

Q: There are several possible modes of inheritance through which traits can be inherited. The following…

A: Pedigree analysis involves the representation of a chart which shows the inheritance pattern of a…

Q: With respect to the inheritance of X-linked recessive traits, which of the following is true? OA…

A: X-linked recessive transmission is a type of inheritance where a phenotype is always displayed in…

Q: Construct pedigree charts using the inheritance of hemophilia in figure 92 (page 113). This is…

A: Pedigree chart is a family tree helps to understand the inheritance of a particular trait or disease…

Q: The following X-linked recessive traits are found in fruit flies:vermilion eyes are recessive to red…

A: The initial step is to decide the request for the three genes.This should be possible by assessing…

Q: A man who is a dwarf due to achondroplasia and has normal vision marries a color-blind woman of…

A: As achondroplsia is autosomal dominant disease so  AA - Disease  Aa - Disease  aa - Normal As…

Q: On average, what will be the proportion of X-linked genes in the second individual that are the same…

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

Q: Two brothers have thick hair that grows over their faces and most of their bodies. This human…

A: Excessive hair growth is linked to Ambras syndrome which is also called hypertrichosis. Ambras…

Q: The following X-linked recessive traits are found in fruit flies:vermilion eyes are recessive to red…

A: Inheritance or heredity is passing-on one trait from the parents to the progeny by either asexual or…

Q: Colorblindness is an X-linked trait found in humans. What are the chances that a colorblind man will…

A: Colorblindness is a recessive disorder located on the X chromosome. Since, it is recessive, two…

Q: What is the chance the parents would have a color-blind boy? A color-blind girl? What about a girl…

A: Colour Blindness It is a kind of disability which involves the inability to distinguish between…

Q: Incontinentia pigmenti, a rare, X-linked dominant disorder inhumans, is characterized by swirls of…

A: Incontinentia pigmenti is a genetic disorder that damages the skin and is more frequent in females…

Q: Marfan syndrome is an autosomal dominant disorder caused by mutations in the FBN1 gene. It affects…

A: Understanding the basic law of inheritance is very important to understand the genetics of the…

Q: A man with hemophilia (X-linked recessive) has two kids: a girl who has a normal phenotype, and a…

A: Hemophilia (A and B) is an X-linked recessive disorder.  The genes that are linked to hemophilia…

Q: Which genotype below is considered a carrier for an x-linked recessive disorder? a C XBXB xBxb xbxb

A: X-linked recessive disorder - Genetic disorders connected to mutations in genes on the X chromosome…

Q: In humans, an X-linked disorder called coloboma iridia (a fissure in the iris_ is a recessive trait.…

A: X-linked recessive inheritance is the genetic condition that happens due to the mutations in genes…

Q: The following X-linked recessive traits are found in fruit flies:vermilion eyes are recessive to red…

A: To calculate The map distance separating two genes

Q: Amanda Sefton (Daytripper) has normal fingers and toes and normal color vision. Her mother is normal…

A: Syndactyly is an autosomal dominant condition.