Hair or fur length in cats is controlled by a single, autosomal gene; the short hair-allele is dominant to the allele for long hair. Hair color is produced by a different gene which is located on the X chromosome. One allele for this sex-linked gene produces yellow, while an alternate allele produces black fur color; individuals which are heterozygous for these alleles are calico or tortiseshell in color. If a long-haired, black male is mated with a calico female homozygous for short hair what kind of kittens will be produced in the Ej generation? Give both genotypes and phenotypes; express the genotypes both symbolically and in words. Label answers clearly!!

Q: Farmer Brown had two hogs, Olga and Hank.  Olga and Hank were normal, healthy hogs, but whenever…

A: Ogla and Hank must be both heterozygous for the condition. That is why they are producing some…

Q: In humans, as well as in many other animals and some plants, the sex of the individual is determined…

A: Haemophilia is an inherited bleeding disorder where blood doesn't clot properly. It is caused when…

Q: Assume that attached earlobes is an autosomal recessive trait with 47% penetrance. If one parent is…

A: The attached earlobes are not rare, but they are also not common. Earlobes of this type are small…

Q: The most common form of colorblindness is a recessive, sex-linked hereditary con dition caused by a…

A: Color blindness is a genetic disorder which is caused by the inheritance of the mutated genes. The…

Q: In guinea pigs, the allele for short hair is dominant.What genotype would a heterozygous…

A: A set of heritable genes that passed from the parents to the offspring is known as genotype. They…

Q: If a man with dark skin whose genotype is AaBB reproduces with a woman who has light skin (aaBb),…

A: Skin colour in human beings is an example of polygenic inheritance as it is controlled by multiple…

Q: A woman homozygous dominant for albinism marries a man who is homozygous recessive for albinism.…

A: Albinism is an autosomal recessive disease. In albinism, deficiency of tyrosinase enzyme occurs due…

Q: Hemophilia is a disease caused by a gene found on the X chromosome. Therefore, it is a sex-linked…

A: If the woman  gets the X chromosome with the hemophilia gene, she will have hemophilia . A man who…

Q: For the pedigree shown here, the disorder is caused by a recessive (g) autosomal allele. Label each…

A: A tree made of lines and symbols representing the genetic history of person's family is known as a…

Q: The individual is heterozygous for genes H and F, and their alleles are in cis. Draw alleles on…

A: Homologous chromosomes are the two DNA pieces which carries same genes and one is obtained from the…

Q: In human beings, the gene for red‑green colorblindness (r) is sex‑linked and recessive to its allele…

A: normal vision male =XR Ycolor blind male= XrYnormal vision female= XR XRcolorblind female =Xr Xr…

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

A:

Q: Geneticists are concerned about three different genetic conditions present within their family.…

A: Autosomal dominant A = achondroplasia  a = average height  AA and Aa = affected aa = normal    X…

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, 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: In humans, the allele for brown eye color (B) is dominant to blue eye color (b). If two heterozygous…

A: SOME BASIC DEFINITIONS ALLELE - they occur in pairs and are responsible for the reprsentation of the…

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: A blue-eyed man, whose parents were brown-eyed, marries a brown-eyed woman whose father was…

A: Autosomal dominant is a condition found specifically in heterozygotes where the mutant gene is…

Q: A type of red-green colorblindness is inherited recessively on the X chromosome. A woman   who is…

A: Color blindness is sex-linked recessive disorder. A person is said to be color blind if he is not…

Q: Red-green colorblindness is due to a sex-linked recessive gene. If two normal parents have a…

A: The traits can be defined as the phenotypic characteristics that are coded by the genes. The genes…

Q: If a heterozygous female mammal with a sex-linked dominant allele for a non-lethal disorder marries…

A: Mammals are the class animals which have mammary glands. Females consists of two sex chromosomes…

Q: In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in…

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

Q: refers to the following pedigree of albinism (an autosomal recessive trait): What are the genotypes…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: In garden peas, yellow (Y) seed color is dominant to green (y). Because yellow and green are two…

A: According to the Mendelian Laws dominance, independent assortment, and segregation, various…

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: In guinea pigs, the allele for short hair is dominant. If all the guinea pigs are born short haired…

A: The two possible genotypes of the parents are:

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: Draw a pedigree that represents an autosomal dominant trait, sex-limited to males, and that excludes…

A: Autosomal dominant trait is associated with non-sex chromosomes and it appears in both males and…

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: The diagrams represent two human somatic cells, one from a female and one from a male, and the…

A: Dominant traits - Brown hair (B) and Brown eyes (E) Recessive traits - blond hair (b) and blue eyes…

Q: In chickens, the Leghorn variety has white feathers due to an autosomal dominant allele. Silkies…

A: An allele is one of at least two renditions of a gene. An individual acquires two alleles for every…

Q: If body-color B is dominant to green body color b what would the genotype be for a heterozygous…

A: It is given that the body color blue is dominant and is represented by B whereas the body color…

Q: Assume that color blindness is a recessive character on the X chromosome. A man and woman with…

A: Introduction  Inheritance referred to the transmission of character/traits in the form of gene from…

Q: Polydactyly is an autosomal dominant condition in which an individual is born with more than five…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

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: In a Punnett square for a trait (X/x) that is autosomal and inherited by the dominant allele. The…

A: We can easily predict the genotype and phenotype of progenies using punnett square.

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

A: As given that the gene for black hair (B) is dominant over blonde hair recessive gene (b). It means…

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: In the fruit fly, Drosophila, eye color is a sex-linked recessive trait located on the X chromosome.…

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

Q: Fur color in cats is a codominant trait and is located on the X chromosome. Cats can be black,…

A: One of two sex chromosomes is the X chromosome. Humans and most mammals have two X and Y…

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: In humans, as well as in many other animals and some plants, the sex of the individual is determined…

A: Haemophilia is X-linked recessive disorder. It is generally caused by a mutation in the genes which…

Q: Color-blindness is caused by an X-linked recessive allele. A color-blind woman marries a man with…

A: X linked recessive genes shows the criss cross pattern of inheritance . In the criss cross…

Q: Albinism (lack of skin pigmentation) is caused by an autosomal recessive allele. A man and woman,…

A: If both parents are heterozygous than one in four children would be expected to show albinism. Only…

Q: Albinism in humans is autosomal and fully recessive to normal color. A couple, who are both normal,…

A: Albinism is an autosomal recessive disorder which means that only homozygous recessive genotype will…

Q: In human beings, the gene for red‑green colorblindness (r) is sex‑linked and recessive to its allele…

A: Given that colorblindness is a recessive X-linked trait. Hence in females, both X chromosomes should…

Q: In humans, brown eyes (B) are dominant over blue (b)*. A brown-eyed man marries a blue-eyed woman…

A: Punnet square isbgiven by Reginald C. Punnet. Here, the gametes and offpsrings are denoted in a…

Q: A disease is known to be inherited through an ADHL mode of inheritance. For a pairing of two…

A: Autosomal dominant inheritance occurs when a single copy of a mutation on an autosomal chromosome is…

Q: In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in…

A: The different variants of a gene are called alleles. In a diploid organism there are two alleles…

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.