Scenario 1: A man and woman have decided to have children but are worried about possible genetic diseases. The couple visits a geneticist to determine what the possible risks are for their future children. The couple discovers that the mom is a carrier, or heterozygous with the diabetes allele and the dad is homozygous dominant, so neither of them have the disease but the mom has one recessive allele. In order to have Diabetes, you have to have two recessive alleles. The following year, the parents are blessed with a bouncing baby boy! What is the correct genotype of the mom? Aa B AA aa

Q: Hemophilia is an X-linked recessive trait in humans.  A woman who is a hemophiliac and normal man…

A: Hemophilia is a disorder in which there is defective clotting of blood and can lead to: Internal…

Q: What is the phenotypic ratio of the offspring when a man who has type A blood, and whose mother had…

A: Given: When a man who has type A blood, and whose mother had type O blood, marries a woman who has…

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: G17. Color-blindness is a sex-linked recessive trait. Mr. Jones, a color-blind man, and Mrs. Jones,…

A: As per our honor code, we are allowed to answer only one question at a moment. I am answering the…

Q: In humans, hemophilia is a sex-linked recessive disease, and the gene is located on the X…

A: Answer: HEMOPHILIA = It is the chromosomal disorder , which sex-linked recessive disease, men are…

Q: A man and both his parents are affected with a disease. His older sister is unaffected. This man…

A: Pedigree is a family tree drown by a genetic councillor uses some special symbol to identity a…

Q: Red-green color blindness is caused by a recessive allele on human X chromosomes. A woman with…

A: Red/green colour blindness is passed from mother to son on the twenty third chromosome, that is…

Q: Red-green color blindness in humans is caused by a recessive allele on the X chromosome. If a woman…

A: Colour blindness is the in ability to see or cannot differentiate between two colours. This is…

Q: The gene for eye color uses the symbol B for brown eyes (dominant) and b for blue eyes (recessive).…

A: The alleles are generally of dominant and recessive type and some other forms like codominant are…

Q: Consider a rare disease that is X-linked recessive. A normal man is married to a normal woman with…

A: Genetic disorders related to mutations in genes on the X chromosome are referred to as X-linked…

Q: In mating between two individuals that are heterozygous for a recessive allele, what genotypic ratio…

A: When the alleles are expressed by suppressing or masking the effects of the another alleles, then…

Q: A woman heterzygous for color blindness (an X-linked recessive allele) marries a man with normal…

A: Color blindness is inherited as a recessive trait on the X chromosome. This is known as X-linked…

Q: Red-green color blindness is inherited through an X-linked, recessive allele (b). Two parents, Fred…

A: Introduction:- Color blindness is an x- linked recessive disorder in which a person loses its…

Q: A woman with type A blood and a man with type B blood have a child with type O blood. Can this man…

A: Blood group is the type of blood we have depends on its genotype. There are 4 main blood groups –…

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: please check my work

A: The branch of biology that deals with the study of genes, heredity and genetic variations are termed…

Q: cystic fibrosis is an inherited disease caused by a recessive gene allele. If a woman and man who…

A: Cystic fibrosis is caused by mutations in the gene that produces the cystic fibrosis transmembrane…

Q: What must be true for a male individual to be a carrier of a Y-linked recessive allele? A. The gene…

A: In the recent decade, various genes are found to be associated with a Y chromosome. These genes are…

Q: People with  recessive disorders are usually born to normal parents who are both heterozygotes which…

A: The recessive disorder occurs when two mutated genes are inherited from each parent to their child.

Q: Tightly curled hair is caused by a dominant autosomal gene in humans. This trait is rare among…

A: if they are homozygous dominant then CC. if they are heterozygous dominant then Cc. if they are with…

Q: If blonde hair color is a recessive trait and one parent is heterozygous for the trait and the other…

A: A. 25%

Q: A recessive allele on the X chromosome is responsible for red-green color blindness in humans. A…

A: The colorblindness is encoded by the genes present on the X chromosome.

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

A: The genetic makeup of parents plays a key role in determining the genetic makeup of the children and…

Q: . The characteristic of albinism (lack of pigment in skin and hair), can be caused by a single gene.…

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

Q: The B gene codes for hair while the b gene codes for hairless. If B is dominant and b is recessive.…

A: INTRODUCTION BB : Hair Bb : hair bB : hair bb : hairless

Q: In goats, the gene for coat color is on an autosome and light brown color is dominant to black. A…

A: Let the gene determining the same be B/b So light brown male is BB Dark brown female is bb BBX bb Bb…

Q: Colour-blindness is the result of an X-linked recessive allele, Xc. The allele for normal eyesight…

A: The pedigree analysis allows us to determine the pattern of inheritance of a particular trait in the…

Q: The gene for black hair (B) is dominant over the recessive gene for blond hair (b). If the father is…

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

Q: Color blindness is a recessive sex linked disorder among humans. A colorblind man has a child with a…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: you have a recessive phenotype for a given trait, but neither of your parents has that phenotype,…

A: A dominant allele produces a dominant phenotype in individuals who have one copy of the allele,…

Q: Which of the following is true of recessive sex-linked genes? A. A female showing the trait will…

A: Pedigree Tree:  It is a chart made of symbols and lines that shows the person's genetic family…

Q: Color blindness is typically an inherited genetic condition in which individuals have a decreased…

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

Q: A man and woman have decided to have children but are worried about possible genetic diseases. The…

A: Alleles may be dominant or recessive in nature. Even if a person only has one copy of a dominant…

Q: A certain type of deafness in humans is inherited as an X-linked recessive trait. A man with this…

A: Clearly laying the basics first for the student to understand. X linked recessive diseases can…

Q: If an individual with a dominant phenotype is crossed with an individual with a recessive phenotype,…

A: Phenotype - the physical result of gene expression which is visible to eyes. Genotype - the genetic…

Q: For an X-linked recessive disease, if an affected male is crossed with an unaffected female who is…

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

Q: Sickle-cell disease is a recessive trait in humans. In a cross between a father who has sickle-cell…

A: A type of inherited blood disorder is sickle-cell disease or sickle-cell anemia. It affects the red…

Q: In monsters, the allele for having one eye is dominant (A). The allele for two eyes is recessive…

A: An allele shows complete dominance over other when it expresses only its character in heterozygous…

Q: Red-green colorblindness is inherited in an X-linked recessive pattern in humans.  A colorblind man…

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

Q: Albinism is a recessive trait where an individual does not produce the pigment melanin. A man and…

A: Albinism is an autosomal recessive mutation caused due to deficiency of tyrosinase enzyme , a copper…

Q: In humans, the allele for colorblindness is found on the X chromosome and is recessive. If a woman…

A: Colorblindness is decreased ability to differentiate or identify colors.  As stated, the allele for…

Q: A man is homozygous normal and his wife is heterozygous for a genetically inherited recessive…

A:

Q: One type of colorblindness is an X-linked recessive trait. If a colorblind man and a woman with…

A: Colour blindness is an X-linked recessive disorder and the females are always a carrier of it the…

Q: Multiple alleles is described when a trait is controlled by more than two alleles, and that even if…

A: According to the question, here we will discuss that multiple alleles and lethal alleles are common…

Q: Match the following Items. 1. Rr homozygous, dominant cell 2. r heterozygous definition 3. identical…

A: Genes are the unit of hereditary information present in cells that are passed on from one generation…

Q: in humans, normal skin pigmentation is influenced by a dominant gene (c), which allows pigmentation…

A: Albinism is passed on in an autosomal recessive inheritance pattern. This means a child has to…

Q: Compare the bands of each set of parents to each of the babies and determine vhich baby belongs to…

A: According to guidelines we have to answer 1st 3 sub parts only, so please consider post the…

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.