A recently married couple are both heterozygous for cystic fibrosis, a recessive genetic disorder. They would like to start a family and would like to have two children. What is the probability that both their first and second child would have cystic fibrosis?

Q: Two normal parents have a child with cystic fibrosis. Would this be an autosomal dominant or…

A: Cystic fibrosis refers to the disorder in which the body produces sticky and thick mucus causes…

Q: A woman develops Huntington's disease and already has 3 children. What is the chance that the mother…

A: Huntington’s disease or Huntington's chorea is a muscular and mental disorder. There is a gradual…

Q: could two brown eyed people have a blue eyed baby?

A: Brown eye trait is an autosomal dominant trait.  The blue eye is a recessive trait.  Let B encodes…

Q: Sickle-cell disease is an inherited chronic blood disease caused by an autosomal recessive allele.…

A: Sickle cell anemia is an inherited red blood cell disorder in which the body's supply of healthy red…

Q: Omar and Aleema are expecting a baby and discover they are both carriers for the autosomal recessive…

A: Sickle cell anemia is a inherited Group of disorder where shape of red blood cells turns in sickle…

Q: Raizen is has a bearded man. he married joana who has a bearded father. what is the probability that…

A: Genotype constitutes a single gene or a set of genes. It represents the complete genetic material of…

Q: A couple is both heterozygous for the autosomal recessive disease cystic fibrosis (CF). What is the…

A: Autosomal recessive inheritance pattern is a type of inheritance pattern in which the disease is…

Q: is an attached earlobe a dominant or recessive trait?

A: Answer: Introduction: Attached earlobes and free earlobes both are representative demonstrate the…

Q: Mrs. Dela Cruz suffers cystic fibrosis and married a carrier for the disease. What is the percentage…

A: Introduction Cystic fibrosis (CF) is a hereditary disorder. This means that it is passed down from…

Q: Huntington's disease is a late-onset autosomal dominant disorder. What is the chance that a…

A: Hungtington disease is a brain disorder that causes uncontrolled movements, loss of thinking…

Q: The reason why autosomal recessive traits appear within a family lineage is due to having…

A: Recessive trait.  The trait which appears only when the both allele of a gene have recessive…

Q: A son with cystic fibrosis is born to a couple that appears normal.  What are the chances that any…

A: Cystic fibrosis is a recessive disease, which means that both copies of the allele in homozygous…

Q: Inigo Montoya is healthy but his mother had the recessive condition, cystic fibrosis, which is…

A: Cystic fibrosis is a disease that is inherited in an autosomal recessive manner. An affected…

Q: A couple has three children one of the has Cystic Fibrosis (autosomal recessive). If neither parent…

A: Cystic fibrosis is an inherited disorder that causes abnormally thick mucus to form leading to clogs…

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: Neither Tim nor Rhoda has Duchenne muscular dystrophy, but their firstborn son does. What is the…

A: Dominant and recessive traits exist when a trait has two different forms at the gene level. The…

Q: Is this pedigree recessive or dominant? Is it autosomal or sex-linked?

A: Pedigree is defined as the diagrammatic representation of individuals of a family for a particular…

Q: Therefore, what is the probability of this couple having a child who is colour blind ?

A: Color blindness is a condition wherein a person is unable to distinguish between two colors,…

Q: Which of the following diseases does not generally follow Mendelian rules of inheritance? breast…

A: Breast Cancer

Q: Jo does not have a bent little finger, but his parents do. What is the expected phenotypic ratio…

A: The phenotypic proportion or ratio is a quantitative connection between phenotypes showing the…

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: O Males and females are affected equally Question 26 Which of the following is a sex-linked…

A: Introduction Genetic disorders are of two types, sex linked and autosomal. Sex linked disorders are…

Q: If a male is homozygous dominant and the female is homozygous recessive, what is the probability…

A: Genotype can be homozygous dominant (AA) or homozygous recessive (aa) or heterozygous (Aa).

Q: A recently married couple are both heterozygous for cystic fibrosis, a recessive genetic disorder.…

A: Both the part a) and part b) are the same questions. So I am answering only part a). An autosomal…

Q: If the dad is homozygous dominant for thick eyebrows, what is the percent chance of the baby having…

A: Mendel, in his monohybrid cross, demonstrated that with the help of Punnett squares, we can…

Q: Tim and Jan both have freckles, but their son Michael does not. Show with a Punnett square how this…

A: Freckles are small brown spots on the skin. Mostly in areas which get sun exposure. In most of the…

Q: “If two sets of identical twins get married and each couple has a child, could the resulting…

A: A "twin" is one amongst a pair of twins. One set of twins refer to 2 those who were born along. many…

Q: Can a woman who is type AB and a man who is type B have a child who is type A? use punnett squares…

A: The Punnett square is defined as a square diagram which is used to give the genotypes of a…

Q: Both parents love strawberry blonde hair but hate the fact they can touch their noses with their…

A:

Q: A normal woman marries a man whose mother is colorblind. What is the probability of their children…

A: The sex-linked inheritance is the transmission of characters and their determining genes along with…

Q: Jan and Michael are both carriers for the cystic fibrosis allele. If Jan and Michael have five…

A: Introduction Cystic fibrosis (CF) is a genetic disorder, which means it is transferred from…

Q: In a disputed parentage case, a man is suspected to be the father of an illegitimate child. He is…

A: Blood groups are based on three different allele. IA , IB or i where i is recessive over both the…

Q: Assume that one of Merida's sons, who is heterozygous for orange hair color, married a girl that was…

A: Heterozygous parents genotype - Hh Gametes - H and h Punnett square -           H          h…

Q: Albinism is an autosomal (not sex-linked) recessive trait. A man and woman are both of normal…

A: Albinism is a genetic disorder in which affected individuals are born without the melanin pigment.…

Q: Your brother has an autosomal recessive disorder, while you are unaffected. Neither one of your…

A: Question - Your brother has an autosomal recessive disorder, while you are unaffected. Neither one…

Q: Tongue rolling is an autosomal dominant trait. What would be the phenotype of a person who is…

A: Those genes which are present in autosomal Chromosome are known as autosomal trait

Q: Mary and Ron don’t have albinism. However, is it possible for them to have a child with albinism?…

A: Albinism is an autosomal genetic disorder. Persons with albinism have less or no melanin production.…

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

A: Hitchhiker's thumb is a genetic condition in which the thumb of the individual is hypermobile and is…

Q: Could this be an autosomal dominant trait? O yes O no Could this be an autosomal dominant trait? O…

A: Typically, at most one member of the family has a genetic condition, and analyzing the pedigree can…

Q: Red-green color blindness is inherited as a recessive X-linked trait. What is the probability that a…

A: In genetics,  various genetically inherited diseases imposes various abnormalities in the…

Q: Charles was married once before and he and his first wife had a child with cystic fibrosis. The…

A: Cystic fibrosis is an autosomal recessive disease.  It is a genetically inherited disease.

Q: Two albinos marry and have four normal children. Howis this possible?

A: Introduction Albinism is a genetic condition that causes a person's skin, hair, and eyes to be…

Q: Fill out the blanks of the pedigree (AA, Aa, or aa) How many children did the original couple have?…

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

Q: Two normal parents have a child with cyatic fibrosis. Would this be an autosomal dominant or…

A: Cystic fibrosis is a life-threatening condition that is passed from parents to offsprings in which…

Q: John and Martha are contemplating having children, but John's brother has galactosemia (an autosomal…

A: The probability that Martha is conveying the g allele depends on the below mentioned reasons. Her…

Q: Tom and Jane have four children: two girls, Jill and Janet, and two boys, Tim and Todd. Tim has a…

A: The modes of inheritance of a genetic disorder are described by the manner in which the said…

Q: If Mark (A) and Gelli (O) have three children, which of their three children, Tony (O), Charm (AB),…

A: The A, B, and O blood groups were first identified by Karl Landsteiner. Blood types in the ABO blood…

Q: If round eye is a recessive trait, Jane has a pair of round eyes. Her genetic composition can be…

A: Since humans carry two sets of chromosomes, a gene will be having two variants (alleles). Alleles of…

Q: A couple has 4 children, 2 sons and 2 daughter. The mother and the daughter is known to have a…

A: Pedigree chart is a representation of the family history of genetic disorders. It is used to…

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.