Q: This illustration shows the F2 phenotypes from a monohybrid cross in snapdragons. What type of…
A: Introduction: Monohybrid cross is a type of genetic cross between two parents with homozygous…
Q: Red/green colour blindness is a sex-linked trait. Show the Punnett square for a father who is colour…
A: Color blindness is a genetic trait that is inherited in a X-linked recessive manner. The gene…
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: A light-haired man has blood type O, his wife has dark hair and blood type AB, but her father had…
A: DNA is the molecule that carries genetic information. A specific sequence of DNA that expresses a…
Q: Straight hair is dominant to curly. However, heterozygotes of this gene have wavy hair. What…
A: The phenotypic characters are influenced by the genotype of that individual or organism. There are…
Q: At the beginning of the film, you were introduced to Davaun and Skyy Cooper, who both have sickle…
A: The haemoglobin gene has a recessive allele that causes sickle cell anaemia. To have the condition,…
Q: What findings led geneticists to postulate the multiple- factor hypothesis that invoked the idea of…
A: In biology, the gene is the primary base of heredity. It is the summation of the sequence of the…
Q: If a male is heterozygous and a female is homozygous recessive, what is the probability that the…
A: Let the gene 'A' encodes dominant trait. And 'A' allele is dominant over 'a' allele. It is given…
Q: What is the pattern of inheritance shown by the following example? A brown guinea pig mated with a…
A: Incomplete dominance is when a dominant allele, or form of a gene, does not completely mask the…
Q: Which of the following rows correctly identifies the relationship between the blood type alleles IA,…
A: It is used to denote the presence of one or both, or neither of A and B antigen on Red blood cells.…
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: In a paternity suit, a woman with type O blood claims that a man with type AB blood is the father of…
A: ABO blood group is a case of multiple alleles and co-dominance. When there are more than two alleles…
Q: If I got an A from my father and a O from my mother for my genotype. How would my phenotype be…
A: An allele is one of several different forms of genetic information that is present in our DNA at a…
Q: A disease is known to be inherited through an ADHL mode of inheritance. For a pairing of two…
A: The observation of a disease trait in which male and female offspring of a sick individual both have…
Q: According to Mendel, if an individual is heterozygous for a gene, the phenotype will correspond to…
A:
Q: Which of the following is NOT true of Y-linked traits? Select one: a. They are always expressed. b.…
A: XX - female XY - male
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: Which of the following statements describes Mendel’s Law of Segregation? a. The dominant allele is…
A: Inheritance is a process by which chracters are passed from parent to progeny; it is a basis of…
Q: The flower color gene studied by Mendel affected three traits. This is an example of ________. a.…
A: Hi, Thanks For Your Question. Answer : Correct Option Is A (Pleotrophic Genes) Explanation :…
Q: Colorblindness is a recessive gene. Does a person who is colorblind have a homozygous or…
A: Colorblindness is a X linked recessive trait. The gene is present on X chromosome.
Q: Complete the table below by writing the expected phenotypes for the different types of inheritance,…
A: A genetic trait is considered dominant if it is expressed in a person even in its single copy. While…
Q: There is a couple, the blood type of a male is A+ and the female is o+. What are all the possible…
A: Blood group A contains the alleles IAIA or IAi ,i.e. male will have these alleles Female having O…
Q: What characteristics of an organism would make it suitable for studies of the principles of…
A: Inheritance is the process by which traites are passed down from generation to generation.
Q: Anastasia was the youngest daughter of Czar Nicholas II of Russia. She had no known children, and…
A: Haemophilia is a sex-linked recessive disorder. The abnormal gene responsible for haemophilia is…
Q: If both parents are heterozygous for an autosomal trait (Aa), what is the probability that their…
A: The progeny inherit half of the genes from the father and half from the mother. The gene content of…
Q: For sex-linked recessive traits, only females can be “carriers”, like how both Diana and Olivia are…
A: Hemophilia is defined as a rare bleeding disorder which is also known as sex-linked recessive…
Q: Which of the following defines polygenic inheritance? An inheritance pattern in which one allele…
A: An inheritance pattern in which one allele is not fully dominant over another, so the heterozygous…
Q: f one parent is heterozygous for an autosomal allele (Aa), and the other is homozygous for the…
A: Dominant refers to the relationship between two versions of a gene. Individuals receive two versions…
Q: If two married individuals had a sibling affected by cystic fibrosis, what are chances that they…
A: Cystic Fibrosis is an autosomal recessive genetic disorder. It is primarily caused by the mutation…
Q: How many different allele combinations can be produced from two parents that are heterozygous for a…
A: A polygenic trait those phenotype which is influenced by more than one gene. polygenic trait show…
Q: what is the probability of having a blood type AB, given that mara has heterozygous blood type a…
A: The human blood group is controlled by a single 'i' gene having three allele, i, iA and iB. A person…
Q: People with recessive disorders are usually born to normal parents who are both heterozygotes which…
A: The recessive disorder occurs when two mutated genes are inherited from each parent to their child.
Q: What data show that "Blending" between the phenotypes of two parents is not a correct view of…
A: The answer is: Some traits skip a generation and then return
Q: show effects of the allele under some circumstances (refer to the linked article and Mendelian…
A: Sickle cell allele refers to the abnormal allele of a person in which hemoglobin beta gene is…
Q: If a girl has a blood type O and the mother has blood type A, what are the possible blood types of…
A: A genetically based trait is one that is passed down through the generations. Mendelian genetics…
Q: the inheritance pattern where two or more genes do NOT assort independently because they are on the…
A: The mechanism of inheritance was first demonstrated by Gregor johann Mendel. From the *monohybrid…
Q: Indicate with J (yes) or N (No) if each pedigree is compatible with each of the following types of…
A: Given are the pedigree charts. In these charts,circle denotes females and black Circle denotes…
Q: What are the odds of the person with sickle cell anemia disorder passing it on to their children if…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: A young couple went to see a genetic counselor because each had a sibling with cystic fibrosis.…
A: Cystic fibrosis is a condition that occurs due to a genetic disorder. Those who have the disease…
Q: In the ABO blood group, type A has three subtypes with an order of dominance shown as A 1> A 2> A 3…
A: Blood group system is system which determine existence or lacking of antigens on RBC surface while…
Q: Do polygenic traits also come under non-allelic gene interactions? I
A: Gene interaction is a wide term phenomenon to explain the collective role of multiple genes in…
Q: Two alleles relate to melanin production A or a, where albinism is the expression of the recessive…
A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: human disease known as cystic fibrosis is inherited as a recessive trait. Two unaffected individuals…
A: Cystic fibrosis It is a autosomal recessive genetic disorder in which affected organism produce…
Q: a. What are the other systems of blood typing? What are the modes of inheritance of these groups?…
A: A blood group is usually controlled by a series of gene, which is comprised of RBCs. 1900 Karl…
Q: Gregor Mendel was a critical contributor to our understanding of inheritance today. In his…
A: Mendel followed the inheritance of seven contrasting pairs of characters in sweet pea. Mendel…
Q: In Labrador retrievers, some puppies have pink noses and some have black. Labrador retrievers with…
A: *Given that In Labrador retrievers some puppies have pink noses and some have black noses * And…
Q: of the following is a valid conclusion about the Duchenne muscular dystrophy pedigree shown above?…
A: Duchenne muscular dystrophy is inherited in an X-linked recessive pattern. Males have only one copy…
Q: There are several possible modes of inheritance through which traits can be inherited. The following…
A: Autosomal dominant is a genetic disorder. Can pass from parent to children. Autosomal recessive is a…
Q: In the pedigree below what is the most likely mode of inheritance? Assume the phenotype of interest…
A: Pedigree chart is used to determine and show the presence or absence of a trait within a family. In…
- What is sickle cell anemia? What is the true inheritance pattern? How did scientists discover the true inheritance pattern?
- Explain multiple Alleles using Human Blood Groups as an example.
- Demonstrate the understanding of Polygenic Inheritance using an Example. (Skin colour or Height can be used as an example for explanation) .
- What is heterozygous advantage? Provide an example to explain the process.
Step by step
Solved in 2 steps
- Cystic fibrosis in humans is caused by a recessive allele. A man is known to be a carrier of the cystic fibrosis allele. He marries a phenotypically normal woman. In the general population, the incidence of cystic fibrosis at birth is approximately 1 in 1,700. Assume Hardy-Weinberg proportions. What is the probability that the wife is also a carrier? Answer in decimal number only (three decimal places; example: 0.123). What is the probability that their first child will be affected? Answer in decimal number only (three decimal places; example: 0.123).Porphyria is a genetic disorder caused by the inability to properly metabolize a component of hemoglobin. King George III is suspected to have been afflicted with this disorder. Assume that both George and his Queen suffered from this disorder and they had one afflicted child and one normal child. Is porphyria inherited in a dominant or recessive fashion? What must be the genotype of both George and his Queen? Using punnett square, show ALL work used to achieve your answer.Huntington disease (HD) is a rare dominant condition in humans that results in a slow but inexorable deterioration of the nervous system. HD shows what might be called “age-dependent penetrance,” which is to say that the probability that a person with the HD genotype will express the phenotype varies with age. Assume that 50% of those inheriting the HD allele will express the symptoms by age 40. Susan is a 35-year-old woman whose father has HD. She currently shows no symptoms. What is the probability that Susan will show symptoms in five years?
- A woman with fair skin, blond hair, and blue eyes gives birth to fraternal twins; the father has dark brown skin, dark hair, and brown eyes. One twin has blond hair, brown eyes, and light skin, and the other has dark hair, brown eyes, and dark skin. What Mendelian law does this real-life case illustrate and explain what this means in terms of the inherited alleles for these genes?In a paternity suit, a woman with type O blood claims that a man with type AB blood is the father of her type O baby. List the genetypes of the mom, man, and baby. Can the woman prove he is the father or can he is not? Why or why not? If the accused man was type A insyead of type AB, what would be his possible genotypes? Could the woman prove he is the father? Can the man prove he is not the father? Why or why not?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?
- In humans, the allele for brown (B) eye color is dominant to the allele which causes blue (b) eyes. If a brown-eyed man, whose father had blue eyes marries a brown-eyed woman and the first baby of this couple has blue eyes, answer: What is the genotype of the man? What is the Genotype of the woman? What is the expected genotypic and phenotypic ratio among all possible children?Skin color in humans is determined by a polygenic inheritance system. The husband is white while the wife is of Nigerian heritage. However, their two children are all light-skinned. How were the married couples able to have light-skinned babies. Are the odds to have a light-skinned baby one in a million? What are the possible genotypes of the husband and the wife and their children.Huntington's disease is an inherited autosomal dominant disorder that can affect both men and women. Imagine a couple has had seven children, and later in life, the husband develops Huntington's disease. He is tested and it is discovered he is heterozygous for the disease allele, Hh. The wife is also genetically tested for the Huntington's disease allele, and her test results show she is unaffected, hh. What is the percent probability that the first child of this couple will have Huntington's disease? probability: % What is the percent probability that two of the seven children will have Huntington's disease? probability: %
- Marfan’s syndrome is an example of pleiotrophy where individuals with a copy of the dominant allele have skeletal disorders, mitral valve prolapse and characteristic slender, loose joints. If Abraham Lincoln had a marfanoid disorder which he inherited from his mother, what are the chances he passed this trait on to his offspring? Consider that Mary Todd Lincoln, his wife, was 5’2”. please include a punnett squareCystic Fibrosis (CF) is an autosomal recessive condition. Therefore, heterozygous (Cc) carriers do not display symptoms. Two parents who are carriers plan to start a family and you are a genetic counselor helping to advise them about their chances of having children affected by CF. a) Suppose the couple has 4 children, each one year apart. What is the probability that all 4 children will inherit CF? b) What is the probability that any 3 of their 4 children will not inherit CF, but 1 will be affected? c) What is the probability that their first child will not inherit CF, but the younger 3 children will inherit CF?Name: Human Phenotypes Simple dominance inheritance pattern: Q: How many phenotypes are evident in patterns of simple dominance? What are they? If a phenotype results from simple dominance, which two genotypes cannot be distinguished? Which phenotype is always representative of the genotype? Now determine your personal inheritance of the following traits. As you read through the following descriptions, you'll identify your trait, and determine your phenotype. Your trait will be one of the two Shape of the face. Most facial characteristics are affected by many different genes acting together (multiple factors or polygenic inheritance). For this trait we have simplified the nature of this trait by assuming it is the result of a single gene. Oval shape is dominant (needs only homozygous (both alleles are the same, either dominant or recessive) or heterozygous (one dominant allele and one recessive allele). Square shape is recessive (requires that both alleles are the recessive allele in…