1. What are some of the medical applications of karyotyping? 2 What kind of chromosomal aberration is exhibited by individuals with cri-du-chat syndrome? Down syndrome? 3. What are other types of chromosomal aberrations? List examples for each type.
Q: 1. In fruit flies, white eyes are X-linked recessive mutation. If a female who is a carrier of the…
A: Introduction :- A gene's allele is one of two or more variants. For each gene, an individual…
Q: 3. The father shown beiow has Hemophilia, an X-linked recessive disorder. If this couple had a son,…
A: ANS- If the father has hemophilia and the mother does not carry hemophilic gene, then no son (XY)…
Q: 6. Consider this pedigree for an X-linked dominant trait. What would be the genotypes of each…
A: The pedigree is the family tree diagram used to represent the pattern of inheritance in the family.…
Q: 5. Show the cross of a red eyed female (heterozygous) and a red eyed male. What are the genotypes of…
A: Given: Red eyes female is heterozygous Male is red eyed. The disease is X linked. The Punnett square…
Q: 5. Consider the following pedigrees. Each represents inheritance of a recessive phenotype. Explain…
A: Pedigree analysis is the diagrammatic representation which represents family history of individuals…
Q: 4. Show a cross between a pure red eyed female and a white eyed male. What are the genotypes of the…
A: The genetic traits of an organism are referred to as a genotype. Physical features are referred to…
Q: What are the four types of changes in chromosomal structure?
A: Chromosomes are filamentous bodies present in the nucleus. They are composed of DNA(…
Q: hapsburg jaw/lip?
A: A Hapsburg jaw is a specific facial deformity that is marked by a very elongated and prominent lower…
Q: 7. In man, normal pigmentation is due to a dominant allele "A" and albinism to its recessive allele…
A: Albinism is an autosomal recessive disorder that results in little or no production of a pigment…
Q: 5. In humans, one type of color-blindness, an inability to distinguish between red and green, is…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: 6. The pedigree below traces the inheritance of a particular disorder. Circles are females, squares…
A: The tabular representation of family history by taking into consideration a disease or character…
Q: 3) A. How are the following proteins involved in cell division: condensing, cohesin, kinetochore…
A: The genotype is a combination of alleles of a gene that gives a person unique characteristics.…
Q: 7. It has long been known in the field of human genetics that wavy hair is the expression of a…
A: Heterozygous Genotype - It is the presence of 2 different alleles at a gene locus, including one…
Q: 4. The couple shown by the pedigree shown below, have 2 children, 1 girl with the disease and 1 boy…
A: X linked recessive trait is the type of trait that is inherited by the female child only if both the…
Q: 3. What is a female carrier in regards to sex-linked inheritance, explain?
A: Sex - linked Inheritance -- In human and other mammals , biological sex is determined by a pair of…
Q: 2. Assuming complete penetrance, which type of inheritance pattern is consistent with the pedigree…
A: Pedigree is a diagrammatic representation of either phenotypes or genotypes of a particular organism…
Q: 6. Assume that brown eyes are dominant to blue eyes. A father who is heterozygous brown eyed and a…
A: Human blood grouping is dependent on the presence of the type of antigen present on the surface of…
Q: 6. MULTIPLE ALLELES A woman with blood group A and a man with blood group B had three children. One…
A: The blood group is determined by the types of alleles inherited from the parents. The allele is a…
Q: 8. If the frequency of the "green" form of red-green color blindness (due to an X-linked locus) is 5…
A: According to our guideline i will gave you answer only one question... please ask rest of the…
Q: ale is crossed with a white eyed male. One of their progeny has white eyes. What other possible…
A: Alleles- An Individuals receive two variant of each gene from each parent are known as alleles.…
Q: 13. A dominant x-linked allele (B) gives normal color vision but the recessive allele (b) causes…
A: Introduction When a gene on the X chromosome is mutated, the trait is always manifested in men and…
Q: 3. Cross a man with type B heterozygous blood with a woman with type O blood. What are the possible…
A: Introduction :- A blood type is a type of blood classification based on the presence or absence of…
Q: 5. A horse breeder finds that one of the stallions has a genetic defect that affects the motility of…
A: Probability means the chance of occurrence of a certain event when expressed quantitatively. It is a…
Q: 2. Can a color-blind female have a son that has normal vision? Color blindness is caused by a…
A: 2. Suppose, XN is the normal allele and Xn is the color blind allele. It is a X-linked recessive…
Q: 6) For the pedigree shown below, answer the following questions. I II II I a) What type of…
A: Pedigree analysis helps us identifying the mode of inheritance of a particular disease by observing…
Q: 1 In humans, red-green colorblindness is a sex-linked recessive condition. Show a cross between a…
A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…
Q: 4. Colorblindness is an X-linked trait caused by a recessive allele. A carrier female marries a…
A: Color-blindness is an X-linked recessive trait males have only one X chromosome and presence of…
Q: 1. Define these three terms: a. trait – b. heredity - c. genetics - 2. What are alleles? 3. What is…
A: gene– the unit or heredity occupying a particular location on the chromosome and passed on to…
Q: 1. Draw the pedigree for Amita's family and determine the mode of inheritance if any. 2. Explain how…
A: From the given data, it is clear that the disease is autosomal, not sex-linked. As if it was…
Q: Explain how nondisjunction in meiosis is responsible for chromosome abnormalities such as Down…
A: Meiosis is the phenomeon that is well known term and usually discreibe in which diploid cells divide…
Q: 3. What are other types of chromosomal aberrations? List examples for each type.
A: Chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…
Q: 7. Two heterozygous white (brown fur is recessive) rabbits are crossed. 8. In some chickens, the…
A: A visual aid or visual tool which helped the scientists to show and identify the possible…
Q: 5. Hemophilia is caused by an X-linked recessive mutation in humans. If a woman whose paternal uncle…
A: In the disease called “haemophilia”, if a wound is created, the blood does not clot normally. This…
Q: 1. Why is the incidence of trisomy of larger chromosomes rarer than the incidence of trisomy of…
A: A trisomy is an abnormal number of chromosome conditions in which instead of two there are three…
Q: 12. Genetic disorders can be studied using the construction of pedigrees. In a pedigree: a. Males…
A: PEDIGREE ANALYSIS These are the diagrams are used to determine the mode of inheritance of a…
Q: 5. A man with a specific unusual genetic trait marries an unaffected woman and they have four…
A: X-linked disorders are those diseases in which the mutated genes are present on the X chromosomes…
Q: 1.What are the phenotypes of the parents of the corn dihybrid cross described above? 2. What are…
A: The phenotype represents the morphological expression of the genes.
Q: 1. In man, normal color vision vs. red green colorblindness is controlled by C (dominant) and e…
A: Recessive and dominant traits are the one who makes phenotype of an individual. Recessive will…
Q: 4. Consider the characteristics and pedigree of a couple: Woman: has normal vision but mother is…
A: XH - normal Xh - hemophilia Since this is a recessive disorder, one XH allele will give a…
Q: 1. Compare the number of chromosomes in the Down syndrome with the nor- mal karyotypes explain the…
A: Chromosomes are filamentous bodies present in the nucleus. They are composed of DNA(…
Q: 32) Which term correctly describes the phenomenon that is taking place when a single gene influences…
A: B.Pleiotropy
Q: 3. Red-green color blindness is caused by an X-linked recessive allele. Suppose a color-blind man…
A: Suppose, the color blind allele is Xc (recessive) and the normal wild type allele is X. Now, in the…
Q: 12. A heterozygous black mouse is crossed with a white mouse. a) Which color is dominant? b) How did…
A: Note: As per guidelines only the first three has been solved. Repost for remaining questions…
Q: 3. A person with hemophilia (sex-linked recessive trait) lacks a protein needed for blood clotting…
A: Haemophilia is a genetic disorder and is inherited from one generation to the next.
Q: 1. What advantages do anonymous DNA markers afford for genetic mapping as opposed to traditional…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Huntington’s disease is a degenerative disease of the nervous system that strikes in middle age. The…
A: Huntington's disease follows autosomal dominant pattern meaning only single allele is required to…
Q: 4. For a couple, what is the significance of knowing chromosomal aberrations? 0. What environmental…
A: Chromosomal aberrations are the abnormalities in the chromosome. These changes may occur due to the…
Q: 9. A heterozygous short, homozygous curly haired rabbit is crossed with a long and straight haired…
A: The question given here has asked to perform a dihybrid cross between a Heterozygous Short Haired…
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- b. The following diagram shows a family tree of individuals with haemophilia. B i. Based on an X-linked recessive pattern of inheritance, work out the likely genotypes of the individuals indicated by the letters. Individual A Individual B Individual C GENOTYPE ii. If individual C has children with a normal male, what are the chances that they will have haemophilia? Explain your answer fully. iii. If individual C has children with a normal male, what are the chances that their daughters will be carriers of the condition? Explain your answer fully.Explain the following1. A couple comes to a genetic councilor concerned about their chances of having a baby with cystic fibrosis disease. The husband had a sibling die of the disease. What are the chances that he is a carrier?1. What role does a patient's genetics have in their symptoms of muscular dystrophy? What causes various mutations to cause distinct symptoms? (two to three sentences) (Think about why various mutations in different genes cause different illnesses.)2. What can family history teach you about a patient's muscular dystrophy inheritance and, hence, genetic basis? (two to three sentences)3. The X-chromosome contains the mutation that causes Duchenne Muscular Dystrophy (DMD). Explains how this impacts DMD inheritance and why DMD patients are disproportionately male. (two to three sentences)
- State whether each of the following genetic defects is inherited as an autosomal recessive, autosomal dominant, or X-linked recessive trait: phenylketonuria (PKU), sickle cell anemia, cystic fibrosis, Tay-Sachs disease, Huntingtons disease, and hemophilia A.2. Imagine that you are in your late 30s or early 40s and decide that you want a child. You realize that you’re at greater risk of having a child with Down’s Syndrome. What sorts of genetic screening are available today? If you find out that this child has this condition, do you think it’s appropriate to have an abortion? Why or why not? Question: Does elective abortion of fetuses with physical or other developmental disabilities have an effect on the perception of personhood, dignity, and rights in society? Explain.3. D. A. B. C. 10. Familial hypercholesterolemia is the most common genetic cause of heart disease. It is caused by a dominant factor (C). The recessive factor (c) produces a protein that processes cholesterol normally and leads to a normal risk for heart disease. Answer the following questions about the inheritance of this disease. What is the phenotype of a woman whose genotype is Cc? What is the genotype of a man who has hypercholesterolemia but whose mother did not have the disease? If a man who is heterozygous for the disease marries a woman who is heterozygous for the disease, what is the chance that any child of theirs will inherit the disease? If a man who is homozygous dominant marries a woman who is homozygous recessive, what would you predict for the the genotypes and phenotypes of their children? If the first 2 children from the marriage described in D above have the disease, what is the chance that a third child would be normal? Explain your answer. 41
- 1. Study the given alleles. Write the correct phenotype for each genotype. X – normal Gen otype xC - Color-blind Phenotype XX XY XXC xCY 2. Study the given alleles. Write the correct genotype for each phenotype. xH - Hemophiliac Phenotype X- normal Gen otype Hemophiliac female Hemophiliac male Normal female carrier of the gene Normal male Normal female 28 3. Determine the genotype and phenotype of the offspring. A color-blind mother (XCx) married a normal sighted (XY) father. Genotype: Phenotype: Genotype: Phenotype: Genotype: Genotype: Phenotype: Phenotype: a. There are b. There are c. There are d. There are % normal sons. % normal daughters. % color-blind sons. % color-blind daughters. % normal female, carrier of the disorder. or or or or e. There are orE. D. A. B. 11. C. Huntington's disease is a degenerative disease of the nervous system that strikes in middle age. The allele that causes the disease (H) is dominant to the allele that results in the normal condition (h). Answer the following questions about the inheritance of this disease. What is the genotype of a man who is normal but whose father had Huntington's disease? What is the genotype of a woman who has Huntington's disease if both of her parents had Huntington's disease? If a man who is heterozygous for Huntington's disease marries a woman who is normal, what would you expect for the genotypes and phenotypes of their children? If a normal man marries a woman who is homozygous for Huntington's disease, what do you expect for the genotypes and phenotypes of their children? Since Huntington's disease is caused by a dominant allele, does this mean it's also the most common allele in the population? F. Since Huntington's disease is caused by a dominant allele, does this mean…II. Write TRUE if the statement is correct and FALSE if otherwise. -7. A temale parent possessing an X-linked dominant mutation is considered a carrier and will not manifest clinical symptoms of the disorder. _8. Y-linked traits are passed from the father to son, without the occurrence of genetic recombination. 9. Somatic mosaicism results to abnormalities based on the amount and distribution of normal cells while gonadal mosaicism affects the germline tissues leading to a new dominant mutation. 10. A test cross is done to determine which allele is dominant and which is recessive.
- Answer the following questions. 1. Construct a map for the genes d,e,f. Assume that: d and e = 3%; e and f = 5%. Give 2 arrangements of the genes/maps. 2. If d and f = 2%, what is the correct arrangement of the genes d,e,f? 3. Consider the fourth gene "g". if g and e = 1.5%, give two possible arrangements. 4. If d and g = 1.5 % give the correct order of the four genes %3DQuestion: The disorder: Red-Green color blindness Explain the mode of inheritance of the disorder (recessive, dominant, x-linked, etc.) . Can a person be a carrier of this disorder? • Describe the probability of having a child with the disorder -- give a specific scenario (ex. both parents are heterozygous for the trait) • Describe the symptoms associated with this disorder Explain the prognosis of a person born with this disorder3. STATEMENT: Color-blindness is due to a sex-linked recessive gene. A colorblind man marries a normal-visioned woman and they have a colorblind daughter. a) What is the genotype for the man, woman and the daughter? b) The couple decides to have another child, what is the probability their child will be: i. Colorblind? ii. Have a daughter that has normal vision, no colorblindness? They know that they're having a son because they saw the sonogram with a little noticeable Schmeckle (Oscar Meyer weiner). iii.