What technique was originally used by geneticists to determine that the human traits you observed in the lab are dominant, recessive, or X-linked.
Q: How can the same phenotype stem from many different genotypes
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: In the following pedigree, the indicated trait is caused by which type of allele? ped 1.jpg
A: Answer: Pedigree chart is the chart which explains the genetic history of a family generations.…
Q: . Which of the following terms applies to traits, such as human eye color, that are controlled by…
A: Codominant Some genes have alleles that are both expressed in the heterozygote individuals. e.g.…
Q: In the future, gene technology may make it possible for parents to produce children with athletic…
A: Gene editing is the process by which editing of a genome is done to produce certain desired results…
Q: What are genotypes
A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…
Q: What is pedigree Analysis? What are its use or uses?
A: There are several methods to study human genetics such as pedigree analysis, population genetics…
Q: If a pregnant woman had a karyotype prepared for her baby before birth, would it be more useful in…
A: The complete set of chromosomes in the cells of an organism is its karyotype. The karyotype of the…
Q: Is it possible to determine the genotype of an individual expressing a recessive phenotype? Provide…
A: WHAT IS GENOTYPE Genotype simply means collection of genes in an individual. it is representation of…
Q: Why is Gregor Mendel considered the father of genetics
A: Genetics is a branch of biology. It is the study that focuses on genes, genetic variation, and…
Q: Stefan has launched a paternity suit to determine whether he is the father of an orphan residing in…
A: Stefan has launched a paternity suit to determine whether he is the father of an orphan residing in…
Q: in own understanding, what is mendelian genetics?
A: Gregor Mendel, an Austrian monk, performed hundreds of crosses with garden peas at his monastery in…
Q: For which reasons, early human geneticists were slow to accept Mendelian analysis?
A: Gregor Johann Mendel was an Augustinian monk. He worked on garden pea for the genetic experiment and…
Q: Why is pedigree analysis important?
A: The genetic disorders can be identified by pedigree analysis. the genes are the functional unit of…
Q: Give an EXAMPLE of each genetic term to ell the difference of the terminologies A. Mendelian…
A: Genetics: It is the study of hereditary, variations and environmental effects on the genes. It is of…
Q: Why was Mendel’s approach to the study of heredity so successful?
A: Mendel selected 14 true breeding varieties of pea plants. He chose pea plants because it had…
Q: What is pedigree Analysis? How is it useful?
A: A pedigree chart is a diagram that shows the phenotypes or genotypes for a particular organism and…
Q: How might genetic testing lead to genetic discrimination?
A: Genes are the basic structural and functional units of heredity. They are composed of…
Q: What are the causes of pedigree analysis?
A: Genetics is the branch of Biology dealing with the study of genes including their structure,…
Q: If an organism shows the dominant phenotype, then one of its genes
A: If two same copies of the same allele coding for a particular trait is called homozygous, if…
Q: A couple enters your genetic counseling clinic for some family planning advice. The woman’s father…
A: Pedigree is the theoretical study of the inheritance patterns of a particular trait in a family. It…
Q: What is pedigree analysis? Suggest how such an analysis, can be useful.
A: A gene is a sequence of nucleotides in genome that codes for a functioning molecule. There is…
Q: What is the purpose of doing a pedigree analysis
A:
Q: What is an example of why genetic testing is done on prospective parents?
A: BASIC INFORMATION MUTATION It is sudden or discontinuous variation These changes occurs in the…
Q: How is pedigree analysis used to determine whether a trait is inherited in an autosomal-dominant,…
A: To study the inheritance of various genes in human beings one method has been used which is known as…
Q: what is a genotype and what is a phenotype? Explain how these concepts relate to the concepts of…
A: Genes are the sequence of nucleotide that encode a particular protein.
Q: can you please explain to me how twin studies can reveal whether or not the appearance of a trait is…
A: Identical twins share the same Genetic pattern whereas non identical twins doesn't have the same…
Q: A pattern of inheritance in which the form of a single trait is collectively determined by alleles…
A: Gene- A gene is a polynucleotide chain that will control a particular trait.
Q: Why are there so few Y-linked traits in humans?
A: The study of genetic variations, heredity, and genes is called genetics.
Q: What is the reason for doing a test cross? to determine which allele is dominant to the genotype of…
A: In the field of genetics, a test cross is a genetic cross performed to determine whether an organism…
Q: What is the genetic phenomenon when a person has a specific genotype but phenotypically presents…
A: Genotype is defined as the genetic constituent of an organism. where is the phenotype is defined as…
Q: Over 300 genetic defects can be detected now by examining a karyotype. Its true or false? Explain
A: Karyotyping is the mechanism by which chromosome photographs are taken to determine an individual's…
Q: While traits Mendel worked with all adhered to his principles of inheritance, this is not the norm…
A: Mendel proposed three laws of inheritance: the law of dominance, the law of independent assortment,…
Q: Which of the experiments Mendel performed led him to distinguish alleles as dominant or recessive
A: INTRODUCTION Plant height, pod form and colour,…
Q: The allele types for a single gene are given symbols that represent the organisms genotype.…
A: Introduction - A gene has two or more alleles. Each gene has two alleles, one from each parent. If…
Q: Which of the following models represents the genetic material that governs inherited traits? A C…
A: Genetic material that governs inherited traits.
Q: Which of the experiments Mendel performed led him to distinguish alleles as dominant or recessive?
A: Mendel analysed seven characteristics of pea plants, including plant height, pod form and colour,…
Q: What are some of the best methods for solving X- linked recessive and X- linked dominant pedigrees?
A: Humans have 22 pairs of autosomes and 2 sex chromosomes. In case of female the sex chromosomes are…
Q: What are two possible explanations for why the same genotype (DNA) can result in different…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: Is the blueness a recessive trait why and why not What was Elizabeth smith only possible genotype…
A: In genetics, a gene consists of two alleles. One allele which masks the effect of other allele is…
Q: How could you distinguish between an autosomal recessive trait with higher penetrance in males and…
A: An individual with the autosomal recessive disease will have unaffected parents since the offspring…
Q: f what you have learned in our topic "mendelian genetics"
A: Homozygote - a personal that contains just one gene at the allelomorphic pair; for instance dd is…
Q: What do you think that means about the frequency of X-Linked Traits in people who arebiologically…
A: X-linked inheritance can be defined as a mode of inheritance in which a mutation in a gene on the X…
Q: Geneticists often carry out reciprocal crosses when they are studying the inheritance of traits. Why…
A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…
Q: Are these alleles common or rare in humans?
A: Allele is a variant form of gene, humans can be diploid if they have 2 allele, with each allele…
Q: If the mother has normal color vision but her daughter has red-green colorblindness, what must be…
A: The red green color blindness is a X linked recessive trait. Let XC encodes normal phenotype. And…
Q: had a karyotype prepared for her baby before birth, would it be more useful in predicting the risk…
A: Down`s syndrome, also known as trisomy 21 is a genetic disorder caused when abnormal cell division…
Q: What is the contribution of Mendel to genetics
A: Genetics is the branch of biology which is concerned with the study of gene, heredity and variations…
What technique was originally used by geneticists to determine that the human traits you observed in the lab are dominant, recessive, or X-linked.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Pedigree analysis is a fundamental tool for investigating whether or not a trait is following a Mendelian pattern of inheritance. It can also be used to help identify individuals within a family who may be at risk for the trait. Adam and Sarah, a young couple of Eastern European Jewish ancestry, went to a genetic counselor because they were planning a family and wanted to know what their chances were for having a child with a genetic condition. The genetic counselor took a detailed family history from both of them and discovered several traits in their respective families. Sarahs maternal family history is suggestive of an autosomal dominant pattern of cancer predisposition to breast and ovarian cancer because of the young ages at which her mother and grandmother were diagnosed with their cancers. If a mutant allele that predisposed to breast and ovarian cancer was inherited in Sarahs family, she, her sister, and any of her own future children could be at risk for inheriting this mutation. The counselor told her that genetic testing is available that may help determine if this mutant allele is present in her family members. Adams paternal family history has a very strong pattern of early onset heart disease. An autosomal dominant condition known as familial hypercholesterolemia may be responsible for the large number of deaths from heart disease. As with hereditary breast and ovarian cancer, genetic testing is available to see if Adam carries the mutant allele. Testing will give the couple more information about the chances that their children could inherit this mutation. Adam had a first cousin who died from Tay-Sachs disease (TSD), a fatal autosomal recessive condition most commonly found in people of Eastern European Jewish descent. Because TSD is a recessively inherited disorder, both of his cousins parents must have been heterozygous carriers of the mutant allele. If that is the case, Adams father could be a carrier as well. If Adams father carries the mutant TSD allele, it is possible that Adam inherited this mutation. Because Sarah is also of Eastern European Jewish ancestry, she could also be a carrier of the gene, even though no one in her family has been affected with TSD. If Adam and Sarah are both carriers, each of their children would have a 25% chance of being afflicted with TSD. A simple blood test performed on both Sarah and Adam could determine whether they are carriers of this mutation. Would you want to know the results of the cancer, heart disease, and TSD tests if you were Sarah and Adam? Is it their responsibility as potential parents to gather this type of information before they decide to have a child?Pedigree analysis is a fundamental tool for investigating whether or not a trait is following a Mendelian pattern of inheritance. It can also be used to help identify individuals within a family who may be at risk for the trait. Adam and Sarah, a young couple of Eastern European Jewish ancestry, went to a genetic counselor because they were planning a family and wanted to know what their chances were for having a child with a genetic condition. The genetic counselor took a detailed family history from both of them and discovered several traits in their respective families. Sarahs maternal family history is suggestive of an autosomal dominant pattern of cancer predisposition to breast and ovarian cancer because of the young ages at which her mother and grandmother were diagnosed with their cancers. If a mutant allele that predisposed to breast and ovarian cancer was inherited in Sarahs family, she, her sister, and any of her own future children could be at risk for inheriting this mutation. The counselor told her that genetic testing is available that may help determine if this mutant allele is present in her family members. Adams paternal family history has a very strong pattern of early onset heart disease. An autosomal dominant condition known as familial hypercholesterolemia may be responsible for the large number of deaths from heart disease. As with hereditary breast and ovarian cancer, genetic testing is available to see if Adam carries the mutant allele. Testing will give the couple more information about the chances that their children could inherit this mutation. Adam had a first cousin who died from Tay-Sachs disease (TSD), a fatal autosomal recessive condition most commonly found in people of Eastern European Jewish descent. Because TSD is a recessively inherited disorder, both of his cousins parents must have been heterozygous carriers of the mutant allele. If that is the case, Adams father could be a carrier as well. If Adams father carries the mutant TSD allele, it is possible that Adam inherited this mutation. Because Sarah is also of Eastern European Jewish ancestry, she could also be a carrier of the gene, even though no one in her family has been affected with TSD. If Adam and Sarah are both carriers, each of their children would have a 25% chance of being afflicted with TSD. A simple blood test performed on both Sarah and Adam could determine whether they are carriers of this mutation. If Sarah carries the mutant cancer allele and Adam carries the mutant heart disease allele, what is the chance that they would have a child who is free of both diseases? Are these good odds?Pedigree Analysis Is a Basic Method in Human Genetics Using the pedigree provided, answer the following questions. a. Is the proband male or female? b. Is the grandfather of the proband affected? c. How many siblings does the proband have, and where is he or she in the birth order?
- To understand this research, you must be familiar with some basic genetic terminology. Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used. dominant allele phenotype The possession of two different alleles of a particular gene is referred to as Reset Help A variation in a DNA sequence at one particular position is called a heterozygosity genotype recessive allele homozygosity single nucleotide polymorphism The appearance of the organism, its observable traits, are referred to as the A variant of a gene for which an individual must be homozygous in order for it to influence the appearance of the organism is a The set of alleles an organism has for a particular trait is the organism's Submit Request AnswerWho invented/proposed the use of Punnett square in studying genetics? Give a short description of him/her.Pedigree Analysis Is a Basic Method in Human Genetics Pedigree analysis permits all of the following except: a. an orderly presentation of family information b. the determination of whether a trait is genetic c. the determination of whether a trait is dominant or recessive d. an understanding of which gene is involved in a heritable disorder e. the determination of whether a trait is sex-linked or autosomal
- A couple enters your genetic counseling clinic for some family planning advice. The woman’s father was color blind, but her own vision is normal. The man has no family history of color blindness. Neither the man nor woman have any known history of hemophilia, but their first child (a boy) has hemophilia. They ask you to calculate the chance that their nextchild will be affected by one or both conditions. You remember from your genetics training that these are both X-linked recessive conditions and that they are closely linked: in fact, their genetic loci are separated by only 10cM! During the interview with this couple, you draw the following pedigree to represent their information. Given what you know, determine for this couple what chance they have of each of the following (in the table).An important application of DNA fingerprinting is relationship testing. Persons who are related genetically have some bands or peaks in common. The number they share depends on the closeness of their genetic relationship. For example, an offspring is expected to receive half of his or her minisatellites from one parent and the rest from the other. The diagram shown here schematically illustrates traditional DNA fingerprints of an offspring, mother, and two potential fathers. In paternity testing, the offspring’s DNA fingerprint is first compared with that of the mother. The bands that the offspring have in common with the mother are depicted in purple. The bands that are not similar between the offspring and the mother must have been inherited from the father. These bands are depicted in red. Which male could be the father?What genetic model of an organism is the most ideal? And why is it an ideal model in genetics?