Joe is color blind. Both his mother and his father have normal vision, but his mother’s father (Joe’s maternal grandfather) is color blind. All Joe’s other grandparents have normal color vision. Joe has three sisters— Patty, Betsy, and Lora—all with normal color vision. Joe’s oldest sister, Patty, is married to a man with normal color vision; they have two children, a 9-year-old color-blind boy and a 4-year-old girl with normal color vision. Q. If Patty and her husband have another child, what is the probability thatthe child will be a color-blind boy?

Q: The following pedigree represents the inheritance of an autosomal recessive disease in a certain…

A: Introduction  Pedigree Analysis: this is the new approach to study the inheritance pattern in the…

Q: A woman without red-green colorblindness and with a normal chin, whose mother was colorblind,…

A: Genetic inheritance patterns come in two flavors: autosomal dominant and sex-linked recessive. The…

Q: Dick has red green color blindness.  Debi does not have color blindness and is homozygous for this…

A: The functional unit of inheritance is called a gene. Genes are the sequence of nucleotides that are…

Q: Colorblindness is a sex-linked trait. A color- blind woman marries a man with normal color vision.…

A: Color blindness is a recessive x linked disorder, i.e., it is caused by mutation or defect in the x…

Q: Which of the following genetic disorders is described by the following: Recessive sex-linked…

A: Only the X chromosome contains the 'gene' that induces (inherited, red and green forms of) colour…

Q: John has unattached earlobes (dominant) like his father, but his mother has attached earlobes…

A: Let’s denoted the allele for unattached earlobes as A and allele for attached earlobes as aThe…

Q: Mabel has normal color vision and her father was color blind. Mable marries Reginald, who has normal…

A: Color vision defect is a genetic disorder that affects an individual’s perception of color. The most…

Q: 1. In humans, hair form is an autosomaltrait showing incomplete dominance. Hair can be straight,…

A: In incomplete dominance blending of traits occur as dominant allele does not completely mask the…

Q: A color-blind female is expecting with a color seeing male – what is the probability of a male child…

A: Color blindness is a genetic disease that is inherited from parents to their offspring. Inheritance…

Q: man, whose mother has normal fingers, is brachydactylous (very short fingers, rare dominant trait),…

A: The dominant trait means that that mutation occurs in one of the allele of a gene and is expressed…

Q: Linda has a long palmar muscle.  Her parents, Rob and Grogg, do not have a long palmar muscle.…

A: Genetics is the study of genes and their effect on the body. Genes are the heritable characteristics…

Q: A woman is a carrier for hemophilia as well as red-green colorblindness. She has one son that has…

A: The branch of biology that is associated with studying living beings’ molecular as well as genetic…

Q: How can wolf hirschhorn syndrome progress or change?

A: Many cases of Wolf-Hirschhorn syndrome (WHS) (about 50-60%) are not inherited from a parent and are…

Q: Alex (from part A) grows up and marries Molly - they end up having four children. Two of their…

A: Color-blindness is a X-linked recessive recessive inheritance. So, this trait will be transferred…

Q: possible

A: The colour blindness is a  X linked recessive disease . This is carried by the x chromosome linked…

Q: Raedwald is color blind.  His four sisters and his parents all have normal color vision.  Who passed…

A: Introduction:- The X chromosome contains the gene that causes colour blindness. Red-green colour…

Q: Having dimples (D) is dominant over not having dimples (d). A dimpled woman (whose father had no…

A: Answer :  Given that, A dimpled woman marries a man whose mother had no dimples, whose father had no…

Q: Explain why skin color genetics is so much more complex than that of Mendelian traits.

A: Mendel studied the unit of inheritance in pea plants. Mendel perform some cross on garden pea plants…

Q: What is the type of genetic inheritance of color blindness? Is color blindness more frequent in men…

A: Colour blindness is a condition in which a person is incapable to see colours normally. Colour…

Q: 1) having dimples D is dominant over not having dimples d. A dimples woman whose father had no…

A: Introduction  Dominant refers to an allele that masks the effect of a recessive allele when both are…

Q: Having dimples (D) is dominant over not having dimples (d). A dimpled woman (whose father had no…

A: According to guidelines we have to answer the first 3 sub-parts only. so please kingly post the…

Q: 3) if a normal sighted male has children with a carrier woman a) what proportion of their daughters…

A: Q.Ans:- Explanation:- Color blind move to an offspring in an X-linked recessive manner. Let 'A'…

Q: 5. If a protein called phenylalanine builds up in the body, the person has a disease called…

A: INTRODUCTION Phenylketonuria This defect is caused due to the damage in the gene which produce…

Q: SUBJECT: GENETICS Topic: Probability 1. Consider albinism a trait to occur in a human family. If…

A: Introduction:- Albinism is an autosomal recessive condition, meaning that it affects exclusively…

Q: Looking at hairline (widow's peak = H) and ear shape (ear lobes = E)... If a man who is HhEe has…

A: INTRODUCTION  Genetics is the branch of biology that deals with studies of genes, mutation,…

Q: Aaron and Bethany, the parents of Larry, Sarah, Danny, and Brittany, are normal for color blindness.…

A: Color blindness is a rare X-linked recessive disease. An X-linked recessive disease has the…

Q: What category of genetic disorders does albinism disord

A: Answer  Albinism is a single gene defect and it is a type genetical disorder.

Q: Tony has anosmia, a disorder that prevents him from being able to smell. This disorder is an…

A: Unfortunately, I cannot directly perform actions like taking photos or uploading images. However, I…

Q: Armin and Annie are going to have a baby. Annie has dimples in her cheeks (a dominant trait), while…

A: Dimpled cheek (DD) = Homozygous dominant Dimple less cheek (dd) = Homozygous recessive Dimple cheek…

Q: Please explain how genetic heterogeneity can result in a child with normal hearing from parents who…

A: Following is an explanation of how two deaf parents can have a child with normal hearing as a result…

Q: Why is it really uncommon to have brown eyes with red hair?

A: It is really uncommon to have brown eyes with red hair.Brown eye colour is one of the most common…

Q: Why do unrelated children with a disorder such as Down syndrome resemble each other more closely…

A: Down syndrome is a genetic disorder that is caused due to presence of an extra copy of the 21st…

Q: Albinism is inherited through a recessive allele (a). Juan has normal skin color. His Mom and Dad…

A: Genotype means the alleles constituting the genetic composition and responsible for the expressing…

Q: a) A man with red-green colour blindness is married to a girl with normal colour vision. What is the…

A: Genetics is the study of the functioning and main codes of variation and heredity. Inheritance is…

Q: A color-blind man has a son with a color-blind female. Will their son be colorblind? What is a…

A: Introduction  X-linked recessive is a type of inheritance pattern for certain genetic disorders that…

Q: Why is inheritance of eye color more complex than just having either blue or brown eyes?

A: Eye colour is a genetically inherited trait that is influenced by more than one gene.  There is…

Q: Can two polydactylic people have a child without polydactyly? Please explain.

A: Polydactyly is a condition in which a baby is born with an additional finger or toe on each hand or…

Q: If a person has albinism and dark skinned parents what is their genotype

A: Albinism results from the mutation in several genes. It follows the autosomal recessive inheritance…

Q: “The one common denominator for all of the young children [with autism] is that early intervention…

A: Temple Grandin said that, “The one common denominator for all of the young children [with autism] is…

Q: Can a male be a carrier of red-green color blindness?  Provide explanation and Punnet square if…

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

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.