Explain why Huntington disease is inherited as adominant allele while cystic fibrosis is caused by arecessive allele.

Q: Describe the phenotype of individuals who inherit two copies of the HbS allele-Sickle Cell Disease.

A: Sickle cell anemia  It is a genetic disorder that affects erythrocytes(RBC) causing them to become…

Q: Consider a woman whose brother has hemophilia A but whose parents are healthy.  What is the chance…

A: Given that a women whose brother has haemophilia A. We know that haemophilia is an X linked…

Q: Define Mendel’s first law?

A: Genetics is the branch of biology that deals with heredity and inheritance. Gregor Johann Mendel is…

Q: What disorder is shown in the following karyotype? Explain your reasoning and describe any other…

A: The above image is a karyotype of a person. Karyotypes depict paired and ordered chromosomes and are…

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: State the conclusions reached by Mendel in his work on the inheritance of…

A: Gregor Mendel, by his research on pea plants, found the laws of inheritance. He found that genes…

Q: a)  A woman who is type A has a daughter who is type O. Give the genotypes of both the mother and of…

A: Given: Woman (Mother) blood type = A Daughter blood type = O Man (father) blood type = B

Q: An individual named Pat with Prader-Willi syndrome produced anoffspring named Lee with Angelman…

A: Prader-Willi syndrome and Angelman syndrome are two different disorders which are associated with…

Q: Hemophilia A is transmitted by an X-linked recessive gene.With an affected father, what is the…

A: Answer: Introduction: In X-linked recessive disorders, an affected father has a mutation in a gene…

Q: Explain why it is not possible for two parents, one with type AB blood and the other with type O…

A: Blood group is classified based on the presence and absence of antibodies and inherited antigenic…

Q: Define mutant allele

A: The genome of an organism consists of the genetic information that is inherited by its offsprings.…

Q: Describe the phenotype of individuals who inherit two copies of the Hbs allele Sickle-Cell Disease.

A: Sickle cell anemia (SCA) or sickle cell disease (SCD) is a genetic disorder that occurs due to a…

Q: Which of these three scenarios explains overdominancewith regard to the sickle cell allele?

A: A type of dominance is characterized by a phenotype that is more pronounced in a heterozygote…

Q: Explain how ABO blood types are an example of multipleallele inheritance.

A: Genetics is a part of science worried about the investigation of genes, genetic variety, and…

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: Explain why Down syndrome is more common in infants born to women older than 35 years of age?

A: A genetic disorder characterized by abnormal cell division in child resulting in extra (whole or…

Q: Why can a person carrying a translocation be normal except for theinability to have children?

A: Translocation is a hereditary change were a piece of one chromosome servers and connects to another…

Q: What must be the genotypes of the parents of a colorblind daughter? Explain. If number 13 marries a…

A: Answer: COLOURBLIND is a X-linked disorder which can be transferred from parents to progeny , the…

Q: Could an individual with blood type O (genotype ii) be a legitimate child of parents in which one…

A: The ABO blood group system is present in human beings. There are four blood groups in the system,…

Q: Define heterozygous condition for a gene.

A: Introduction: A gene is the basic unit of heredity. It is a sequence of nucleotides present on DNA…

Q: What phenotypes, in what ratios, would you expect from crossing a person with blood type AB (IAIB)…

A: Answer:  PHENOTYPIC RATIO = It means physical appearance , which shows that ratio of total number of…

Q: If a Mother's genotype is IAi and her Daughter's genotype is ii and the mother claims a man who is…

A: Note: In this question, there is no part c that could be used to answer part d. So we will solve the…

Q: 1a) Explain one autosomal pattern of Mendelian inheritance. 1b) Describe one example of a disorder…

A: 1 a) Mendelian inheritance  Mendelian inheritance is defined as the inheritance pattern, which…

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: Describe how a biparental pattern of extranuclear inheritance couldresemble a Mendelian pattern of…

A: The Mendelian inheritance and the extranuclear inheritance has major contrast as the genetic…

Q: Explain the reasons chromosomes carry Mendel’s hereditary units?

A: Genetics is the branch of biology which deals with genes, heredity, and genome in the organism.…

Q: define the term derived allele

A: Genetics is the branch of biology, which deals with the study of genes, their pattern of…

Q: Why the allele for Huntington disease is dominant?

A: Step 1 Huntington disease is an inherited disorder that causes the death of brain cells by the…

Q: A karyotype shows that a child has Klinefelter syndrome (47,XXY). If the child is also colorblind…

A: Karyotyping is the process of taking photographs of chromosomal pairs to determine the number of…

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: Explain mendelian disorders?

A: Mendelian inheritance types are autosomal dominant, autosomal recessive, X-linked dominant and…

Q: Explain the concept of mendal's law of inheritence?

A: Gregor Mendel conducted experiments on pea plant (Pisum sativum) demonstrating the inheritance of…

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: Compare and contrast non-mendelian inheritance in human traits

A: "Non-mendelian genetics" is the study of inheritance patterns that do not follow Mendel's rules. The…

Q: Explain the Reappearance of the recessive trait?

A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…

Q: Suppose that a husband and wife are both heterozygous for a recessive allele for albinism. If they…

A: Alleles are the variants of a gene. Sometimes one trait is controlled by different forms of a gene.…

Q: The pedigree chart below indicates that individual I12 has cystic fibrosis. What is the chance that…

A: Cystic Fibrosis is an inheritable chronic disorder, that affects the cells that secrete mucus,…

Q: Explain the following terms: Heterozygous: Genotype: Phenotype: Dominant allele: Recessive…

A: All these terms described in the question are related to the genetics which is the study of the…

Q: Explain why disease alleles for cystic fibrosis (CF)are recessive to the normal alleles (CF+), yet…

A: Cystic fibrosis is caused by defects in a membrane-bound protein called cystic fibrosis…

Q: Explain why Huntington disease is caused by a dominant allele

A: Alleles refer to two or more variant form of a gene. Genes are the basic structural and functional…

Q: why Most polymorphisms areanonymous?

A: Polymorphism:   It is set place in population when two members or at least two or more members of…

Q: Identical (monozygotic) twins have similar, but not identical, fingerprints. Given that all the…

A: The reproduction can be defined as the process of production of offspring by the parents. The…

Q: Suppose a woman has four sons, and two are colorblind but have normal blood clotting and two have…

A: The normal female sex chromosome is denoted by X. The chromosome with color blind allele is denoted…

Q: Explain the term out-crossing.

A: There are two types of breeding namely, a) In-breeding b) out-breeding The out-breeding further…

Q: Identify the phenotype for each number represented in the 3:1 ratio.

A: The cross is a mono hybrid cross where only one character is considered. Dominant character is…

Q: Predict the possible genotypes for children of a couple with the blood types AB (Genotype IAIB) and…

A: The ABO blood group system is present in human beings. There are four blood groups in the system,…

Q: If a person heterozygous for cystic fibrosis mates with another person heterozygous for Huntington’s…

A: Answer: PUNNETT SQUARE = It is the technique to discover the traits and genotypes transfer in…

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.