Wooly hair is a rare dominant trait found in people of Scandinavian descent in which the hair resembles the wool of a sheep. Amale with wooly hair, who has a mother with straight hair, movesto an island that is inhabited by people who are not of Scandinavian descent. Assuming that no other Scandinavians immigrate tothe island, what is the probability that a great-grandchild of thismale will have wooly hair? (Hint: You may want to draw a pedigree to help you figure this out.) If this wooly-haired male haseight great-grandchildren, what is the probability that one out ofeight will have wooly hair?

Q: A person with sickle-cell anemia marries a healthy person without sickle cell anemia.  They have a…

A: Sickle cell anemia is a red blood disorders where the mutation caused some of the RBC to have sickle…

Q: Suppose a woman was heterozygous forblood type A and her husband had bloodtype AB. With the aid of a…

A: The Punnett square is defined as a square diagram that is utilized for predicting the genotypes of a…

Q: Zoe has cystic fibrosis. Which of the following is themost likely explanation?a. Zoe probably…

A: Cystic fibrosis refers to a kind of genetic disorder influencing majorly the lungs, but also the…

Q: Since each child of two heterozygous parents has a 1/4 chance of receiving a recessive trait from…

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

Q: A morphological trait is the physical association between two genes because they are on the same…

A: Gregor Mendel has postulated three laws in genetics and he is called as Father of Genetics. Law of…

Q: Pseudohypertrophic muscular dystrophy is an inheriteddisorder that causes gradual deterioration of…

A: Pseudohypertrophic muscular dystrophy is a genetic disorder in which fibrous tissues and fat…

Q: Huntington disease is a rare fatal, degenerative neurological disease in which individuals start to…

A: Huntington disease is transmitted by an autosomal dominant allele (HD) of a single gene. Only one…

Q: Piebald spotting is a condition found in humans inwhich there are patches of skin that lack…

A: Piebaldism or piebald spotting refers to a condition that is found in almost all mammal species. It…

Q: Define polygenic inheritance. Why does polygenicinheritance sometimes allow parents to produce…

A: Introduction  Inheritance is referred as the transfer of character from parents to offspring and…

Q: Why is skin color, eye color, and height of humans under Non-Mendelian pattern of inheritance?

A: Mendel's studies mainly described those traits that have distinct alternate forms such as seed…

Q: A man with blood type O marries a woman with blood type A. If their first child has blood type O,…

A: Human blood type is determined by codominant alleles. There are three different alleles, known as…

Q: Alkaptonuria is a metabolic disorder in which affected people produce black urine. Alkaptonuria…

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

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

A: Cystic fibrosis: it is an autosomal recessive hereditary condition which affects very rare (1 out of…

Q: Joan was born with six toes on each foot, a dominant trait called polydactyly. Two of her five…

A: Polydactyly is basically characterized by the existence of an extra digit in the fingers of an…

Q: If a child has type O blood and the mother is type A, then which ofthe following might be the blood…

A: Blood is a specialized connective tissue composed of two components plasma and formed elements.…

Q: A man with type A blood marries a woman with type B blood. Their child has type O blood.  a. What…

A: Genotypes Father - iAiO Mother - iBiO Child - iOiO The child is O blood group because of their…

Q: A man has six fingers on each hand and six toes on each foot. His wife and their daughter have the…

A: Usually, our phenotypes are controlled by the genes, sometime only one gene can determine the…

Q: Which of the following is an example of sex-linked inheritance? O A. diabetes O B. albinism O C…

A: The correct option is C Hemophilia explanation:-the type of inheritance which is present on sex…

Q: Huntington disease is a rare dominant condition in humans that results in a slow but inexorable…

A: Huntington disease is an inherited neural disorder that causes the death of brain cells. The…

Q: In humans, having dimpled cheeks is dominant to non-dimpled cheeks. Isit possible that two dimpled…

A: As dimpled cheeks are dominant,the genotypes are DD and Dd. As the non-dimpled cheeks are…

Q: If the blood type of a person is O, does the person possess multiple alleles? Explain

A: Blood type in humans is broadly classified into four categories A, B, O, and AB depending on the…

Q: Joan was born with six toes on each foot, a dominanttrait called polydactyly. Two of her five…

A: Mendel’s law of dominance states that out of a pair of contrasting characters, the one allele which…

Q: raccoons may have wide, medium-sized, or narrow bands around their tails. They may also have the…

A: Wide bands =Dominant trait Narrow bands =recessive trait Washing food = dominant trait no washing =…

Q: If there is a possibility of four different genotypes in the offspring that result from a…

A: A gene can be referred as a unit of hereditary. They pass the information from one generation to…

Q: If you try to throw a basketball into a basket, the likelihood ofsucceeding depends on the size of…

A: Genetic recombination is the exchange of genetic material that leads to generation of different…

Q: Albinism, a condition characterized by a partial or total lack ofskin pigment, is a recessive human…

A: Genetics is the branch of biology that deals with the study of genes, their inheritance patterns,…

Q: When both the alleles of a gene express themselves in heterozygous condition, the phenomenon is…

A: The study of genetic variations, heredity, and genes is called genetics. The mechanism by which…

Q: Which of the following is an example of simple inheritance? Brown eyes are dominant Blue eyes are…

A: When this individual grins, they have dimples in their cheeks, which is a hereditary feature. Traits…

Q: If wire hair (W) is dominant to smooth hair (w), and you find a wire-haired puppy, how would you…

A: In simple genetic analysis, characters that do not show the case of linkage or recombination are…

Q: A brown-eyed man with "hitchhiker's thumb" marries a brown-eyed woman with a straight thumb. If…

A: Inheritance of the characters can be best analyzed and studied with the help of pedigree analysis.…

Q: Mary has hemophilia, an X-linked recessive trait. From which of the following individuals could Mary…

A: Introduction : Hemophilia is an X-linked recessive trait . It is a genetic condition in which the…

Q: What is the genetic phenomenon when a person has a specific genotype but phenotypically presents…

A: Genotype is defined as the genetic constituent of an organism. where is the phenotype is defined as…

Q: If a girl has blood type B and her mother has blood type A, what genotype(s) and corresponding…

A: Blood group is determined by the type of antigen present on the RBC. If antigen A is present then…

Q: A man has six fingers on each hand and six toes on each foot.His wife and their daughter have the…

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

Q: Karen and Steve each have a sibling with sickle-cell disease.Neither Karen nor Steve nor any of…

A: Genetic disease is caused due to chromosomal aberrations or mutation in the specific genes. Most of…

Q: The complete absence of one or more teeth (tooth agenesis) is a common trait in humans—indeed, more…

A: Tooth agenesis is a dental anomaly that affects approximately 20% of the population's wisdom tooth.…

Q: Which of the following genetic diseases is/are inherited as an X-linked recessive trait: hemophilia…

A: Introduction The passing on of traits from parents to their offspring is known as heredity, also…

Q: What is the type of geneticinheritance that determinesthe ABO blood group system?What are the…

A: Genetics is a branch of the biology involved in the study of genes, genetic variation, and heredity…

Q: if two carriers of the gene for albinism marry, each of their children has probability 1/4 of being…

A: As 1/4 are albino then 3/4 will be normal or we can say that 3/4 won't have albmino a) (3/4)6 =…

Q: If a mother with sickle-cell anemia and a father with the sickle-cell trait havechildren, calculate…

A: Sickle cell anemia is a disease inherited from the parents of a person. The body of a person with…

Q: What are mendal's laws of inheritence?

A: Step 1 Inheritance is the process of receiving genetic information from the parents. The entire…

Q: Unattached earlobes (E) are dominant over attached earlobes (e) [Figure (a) and (b)]. If a woman…

A: Introduction  Sir Gregor Mendel is known as the Father of Genetics. He was the pioneer scientist who…

Q: In humans, blood type is controlled by a gene with three alleles, as shown in the following table:…

A: ABO blood grouping refers to the classification of the human blood based on the inherited properties…

Q: If a color-blind woman married a man whohad normal color vision, what would be theprobable…

A: Color blindness is a genetic disorder in which the photoreceptors of the retina cannot process…

Q: In humans, having freckles is dominant to not having freckles. What are the possible genotypes with…

A: Dominant genotypes can exist in two forms homozygous and heterozygous and recessive genotypes are…

Q: Which blood type phenotypes (A, B, AB, and/or O) provide anunambiguous genotype? Is it possible for…

A: Blood type refers to the classification of blood based on the presence and absence of certain…

Q: For a typical complex trait, describe the relationship betweenthe number of genes affecting the…

A: All living organisms have cells, which are the most basic and crucial unit of life. All of the…

Q: In cats, a temperature-sensitive allele produces the Siamese phenotype, in which the cooler…

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

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.