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: If a colorblind woman married a man with normal vision and had kids.What are the chances of their…

A: Color blindness is an inherited disorder. Here the person who is color blind cannot distinguish…

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: Bob and Joan know from a blood test that they are each heterozygous (carriers) for the autosomal…

A: A group of disorder that affects the hemoglobin is said to be sickle cell disease. An individual…

Q: In humans, red–green color blindness is an X-linked recessive trait. If a man with normal vision and…

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

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: If a trait is X-linked dominant, who would express the trait? A) females homozygous for the dominant…

A: X-linked dominant inheritance is a mode of genetic inheritance by which a dominant gene is carried…

Q: What is the probability that Mike is carrier? 1/6 1/4 1/3

A: A change in the DNA sequence of an organism leads to a genetic disorder. Many factors are…

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: Read the following family history and draw a pedigree to determine the inheritance pattern for…

A: Achondroplasia is genetic disorder in which a person has short limb dwarfism. In this disorder the…

Q: What are the chances of two parents who carry the gene for albinism (an autosomal recessive…

A: In autosomal recessive disorder, person carries two copies of defective gene.

Q: A woman knows that her mother is a carrier of Kartagener’s syndrome (an autosomal recessive…

A:

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

A: 50 percent chances.

Q: In a cross between an individual with Huntington disease and an unaffected individual, what are the…

A: Huntington disease is a progressive brain disorder that causes uncontrolled movements, emotional…

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: People with trisomy 21 develop Down’s syndrome. What law of Mendelian inheritance is violated in…

A: A gene is the fundamental physical and useful unit of heredity. Genes are comprised of DNA. A few…

Q: Cystic fibrosis is a disease that is passed down through the generations. The recessive alleles for…

A: Genes carry the traits from one generation to another. Genes that code for different forms of a…

Q: Thalassemia is an inherited anemic disorder in humans. Affected individuals exhibit either a minor…

A: BASIC INFORMATION  THALESSEMIA  it is a type of genetic disorder which originated in Mediterranean…

Q: If a trait is X-linked recessive, who would express the trait? A) females homozygous for the…

A: X linked recessiveIt is a mode of inheritance in which mutation occurs in the gene of the X…

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: Bryan has albinism, an autosomal recessive trait, which means he is homozygous recessive for…

A: Ans: Albainism is an autosomal recessive disorder. For this disease to develop two copies of an…

Q: Why do most cases of Down syndrome originate from the mother? And how is this linked to maternal age…

A: Down syndrome also called "trisomy 21" is a condition in which a child is born having an additional…

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: Suppose that a grandfather, mother, and son all have the same homozygous dominant genotype for a…

A: Non-mendelian inheritance is the type of inheritance in which the complex genetic basis is…

Q: What is an individual that bears a dominant normal allele that masks the effects of the recessive…

A: The gene is the basic physical and functional unit of heredity. It consists of a specific sequence…

Q: Albinism and sickle cell anemia are both autosomal recessive disorders that are expressed only in…

A: Albinism - genotype be A and a.  aa is diseased, Aa is the carrier and AA is not affected.  Sickle…

Q: Albinism is an autosomal recessive condition characterized by absence of melanin pigment from the…

A: Albinism is a group of genetic disorders characterized by a lack of melanin, the pigment that gives…

Q: Comment, based on your knowledge, the possible effect of endocrine disruptors on human sexuality

A: Endocrine disruptors are chemicals that have the potential to cause developmental, reproductive,…

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: A man and his wife are both heterozygous  for brown eyes. They have ix children all of whom have…

A: Genetic Recombination:  The exchange of genetic material between distinct organisms, commonly…

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: Hemophilia is an X-linked recessive gene. A normal woman who is a carrier for hemophilia marries a…

A: Hemophilia is a disorder in which blood can’t clot properly, excessive bleeding (external and…

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: Tuberous Sclerosis (TS) is an autosomal dominant genetic disease characterized by seizures, mental…

A: Tuberous sclerosis is a rare autosomal dominant disease that causes non-cancerous tumors in various…

Q: Humans who have an abnormally high level of cholesterol are said to suer from familial…

A: The way the body processes cholesterol is affected by familial hypercholesterolemia. People with…

Q: Color blindness is an X-linked recessive disease. A female and a male with normal vision have 4…

A: The failure to discriminate between red and green colors is the most common symptom of color…

Q: Ragweed hay fever (R) is dominant to the lack of allergy (r). A man who doesn’t suffer from ragweed…

A: Given: Ragweed hay fever (R) is dominant to the lack of allergy (r). Man - rr woman - Rr (Her mother…

Q: comparison and difference of monocot and dicot seeds

A: Monocot and dicot are two types of plants found in angiosperms. They both are vascular plants and…

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.