For a recessive condition, two normal heterozygous individuals have children. What is the likelihood of their children being affected by this condition? What is the likelihood of their children being carriers without the condition? What is the likelihood of their asymptomatic children being carriers? Suppose that an individual with the condition has children with a heterozygous individual, what is the likelihood of their children being carriers?

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: Persons with sickle cell anemia have a mutation in the hemoglobin gene. This trait is produced by…

A: Sickle Cell anaemia is a genetic disorder caused by a defective allele on chromosome 11 which…

Q: Huntington disease is a rare dominant disorder that causes neurodegeneration later in life. In a…

A: Huntington's disease is. also known as Huntington's chorea.  It is a rare and progressive…

Q: Sickle cell anemia is a blood disorder that is expressed with incomplete dominance. The homozygous…

A: Genes are generally referred to as the basic unit of heredity. They are a part of DNA and are…

Q: Julie (a female) has hemophilia. Based on this information, what can we say about the genotypes of…

A: Introduction X-linked diseases are those that occur due to the presence of abnormal/ diseased…

Q: Females with Rr genotype are affected, males with rY are affected, females with rr or RR are…

A: Introduction :  Depending on the genes involved, lethal genes can have a dominant, recessive, or…

Q: arts a) through c) below. ays written with the dominant gene first. Therefore, there a nd the father…

A: Sickel cell anaemia is an autosomal recessive. Nomal allele=S Sickle cell anaemia =s

Q: A form of hemophilia is caused by a sex-linked (X-linked) recessive gene. A phenotypically normal…

A: 50 percent chances.

Q: Duchenne muscular dystrophy is an inheritable disorder that results in muscle weakness, leading to…

A: Dichenne muscular dystrophy is a Genetic disorder which show X linked recessive inheritance pattern.…

Q: Two affected daughters and two normal sons are born to an affected male and a normal female. Each of…

A: The pedigree analysis helps us identifying the mode of inheritance of a particular disease and it…

Q: Duchenne muscular dystrophy (DMD), marked by muscular degeneration, results from an X- linked…

A: Duchenne muscular dystrophy is a X- linked inherited disease which is characterized by degeneration…

Q: A pedigree analysis was performed on the family of a man with schizophrenia. Based on the known…

A: Schizophrenia is a mental disorder wherein the affected individual is unable to interpret reality…

Q: In a multigenerational study of a family, 8% of the males and 8% of the females have red hair. What…

A: answer is  A. Autosomal inheritance

Q: The pedigree shown below shows the inheritance of cystic fibrosis, a disorder that causes severe…

A: Cystic fibrosis is an inherited disorder that causes extreme damage to the lungs, digestive system,…

Q: Explain multiple Alleles using Human Blood Groups as an example.

A: Each gene, according to Gregor Mendel, should contain only two alleles. Alleles are gene variants…

Q: When phenylalanine is converted to phenylpyruvic acid, this molecule accumulates in the body and…

A: For this we will use binomial expression  P = n!/ x! (n-x!) * pxq(n-x)

Q: Tay-Sachs disease is a recessive genetic disease. Two individuals, both of whom are heterozygous for…

A: Inheritance is the process of transmitting genes that encode a particular trait from parents to…

Q: In humans, blue eyes are inherited as a recessive autosomal trait and color blindness is an X-linked…

A: The objective of this question is to determine the probability of this couple having a son with…

Q: What is polygenic inheritance? Discuss the issues that make polygenicinheritance difficult to study.

A: A polygene is a member of non epistatic genes group.It interacts to influence a phenotypic…

Q: Hemophilia is a recessive sex-linked trait in humans.  Sickle-cell anemia is a recessive trait on an…

A: Hemophilia is X linked recessive disorder in which blood continuously flows because of absence of…

Q: Hypophosphatemia is a dominant genetic disorder caused by a deficiency of phosphates in the blood.…

A: X-linked genetic disorders can either be recessive or dominant. In this example we can conclude that…

Q: Skin color in humans is determined by polygenic inheritance, which means the more dominant alleles…

A: Polygenic inheritance: - in this inheritance, more than one genes control the single characteristic.…

Q: In humans, the allele for red-green color blindness is X-linked and recessive. An XY man with normal…

A: Color blindness is an X-linked, recessive genetic disorder that hampers the ability of a person to…

Q: Haemophilia is an X-linked recessive disorder. If a woman is a carrier for haemophil. and has a…

A: Hemophilia is basically an inherited bleeding disorder in which the blood doesn't clot properly,…

Q: Below is a pedigree chart for a family that has a history of Alkaptonuria.   Individuals infected…

A: Pedigree analysis is a method to identify the inheritance of a genetic trait across generations.…

Q: Epilepsy is a central nervous system (neurological) disorder in which brain activity becomes…

A: Epilepsy is a neurological disorder that usually affects the human central nervous system and is…

Q: a) Identify and describe 5 different types of genetic inheritance. (b) In humans,…

A: In human cells total of 46 chromosomes are present. Out of these 22 pairs are autosomes and 1 one…

Q: Cystic fibrosis (CF) is an autosomal recessive trait. A three-generation pedigree is shown below for…

A: Given: Cystic fibrosis (CF) is an autosomal recessive trait. Normal allele =  F      CF mutant…

Q: the USA the frequency of carriers for the devastating autosomal recessive trait of procrastination…

A: Autosomal recessive disease is a disorder which is expressed when both the alleles of a gene pair…

Q: - Palomino is a color in horses, (a gold coat); Genetically, the palomino color is created by a…

A: Palomino is colour of horse. It consists of gold coat and white mane and tail. This colour is…

Q: what is the probability that a couple (both heterozygous for the same recessive mutation) will have…

A: “Homozygous defect” takes place If the type of “deleterious mutation” is the same in both copies of…

Q: What is Polygenic Inheritance? A) When one gene has many effects

A: Polygenic inheritance --- Introduction -- There are some type of inheritance which do not follow the…

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.