in classical genetics what is the expected phenotypic ratio for progeny having a characterirstic such as plant height being controlled by a single gene? how about being controlled by two different genes?
Q: What are the possible genotype and phenotype of offspring if one pf the parent is heterozygous tall…
A: The Law of dominance states that the allele which can express itself in the heterozygous condition…
Q: For a cross between a heterozygous tall pea plant and a dwarf plant, predict the ratios of genotypes…
A: Gregor John Mendel -- Gregor John Mendel when studying pea plants predicted that genes comes in…
Q: A parent pea plant with the genotype Ttrr produces offspring in which half are tal and round and…
A: The mendel did an experiment on pea plants over many years and he come up with 3 main laws : Law…
Q: If somebody will ask you regarding the importance of Mendel's garden peas, in two sentences what…
A: Gregor Mendel discovered the basic laws of inheritance through his research on pea plants. He…
Q: If tall plant height (T) is dominant to short plant height (t), a monohybrid cross between a…
A: Law of Dominance given by Mendel states that dominant alleles always mask the recessive alleles.
Q: Mendel observed 7 pairs of contrasting characters in Pisum sativum, One of the following is not a…
A: Genetics is the branch of Biology dealing with the study of genes including their structure,…
Q: Draw a simple pedigree for the following family tree. A man and a woman have three children: a…
A:
Q: Mention the advantages of selecting pea plant for experiment by Mendel.
A: Gregor Johann Mendel proposed principles of biological inheritance that has revolutionized the field…
Q: genotype
A: The gene is defined as the inherited factor which determines the characteristic features. The…
Q: Construct a Punnett square for a cross between two heterozygous pea plants with violet flower color.
A: The violet color of flowers is a dominant phenotype found in pea plants. It is dominant over the…
Q: Use a Punnett square to predict the offspring in a cross between a tall pea plant (heterozygous) and…
A: The hereditary unit of an organism is known as gene. It consists of the DNA (deoxyribonucleic acid)…
Q: You experiment with the genetics of height in a plant. You cross a homozygous tall (TT) plant with a…
A: We'll use punnet square to tell us about how the progeny will look like with complete dominance All…
Q: When a cross in made between tall plant with yellow seeds (TtYy) andtall plant with green seed…
A: Gregor Johann Mendel was an Augustinian monk. He worked on garden pea for the genetic experiment and…
Q: Why was the garden pea a good choice as an experimental organism in Mendel’s work?
A: Garden pea botanical name is Pisum sativum. Pisum sativum belongs to the family of Leguminosae.…
Q: Suppose that in plants, smooth seeds (S) are dominant to wrinkled seeds (s) and tall plants (T) are…
A: A dominant allele represents by capital letters where recessive allele represents by small letters.…
Q: What is the relationship between phenotypic and genetic
A: Genotype of an organisms can be defined as the sum of all it's genes.It is the genetic makeup of an…
Q: When you crossed the two plants heterozygous for both seed color and seed texture, how many…
A: The traits are acquired from parents to offspring by the process of inheritance. Traits of an…
Q: A type of fast plant strain that can be used to study genetics is yellow green leaf in which the…
A: In Mendelian genetics, alleles can be of two forms: Homozygous alleles- The condition in which the…
Q: When you crossed the two plants heterozygous for both seed color and seed texture, how many…
A: Mendel's Law of Independent assortment: Alleles of two different genes will get assorted into…
Q: When you crossed the two plants heterozygous for both seed color and seed texture, how many…
A: Dihybrid cross I a dihybrid cross only two traits of an organism taken into observations and other…
Q: A cross between two pea plants, both of which grewfrom yellow round seeds, gave the following…
A: According to the given information, yellow and round are the dominant traits. Let's suppose that the…
Q: When you crossed the two plants heterozygous for both seed color and seed texture, How many…
A: Answer: Dihybrid cross : It is the cross between two traits of an organisms.
Q: Which phenomenon is an exception to Mendells principle of independent assortment?
A: Mendel was the father of genetics. He gave three laws of heredity. These are Law of dominance Law…
Q: What must have been the genotypes of the parents if you produced 75 yellow seed offspring and 25…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: Which is one of the seven characteristics that Mendel observed in pea plants? a. flower size b. seed…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: A plant with a genotype MmNN is self-fertilized. What is the genotypic ratio of the offspring?
A: If plant with a genotype MmNN is self-fertilized. the genotypic ratio of the offspring would be…
Q: Assume independent assortment and start with a plantthat is dihybrid A/a ; B/b:a. What phenotypic…
A: The father of modern genetics is Gregor Mendel. He was a naturalist who gave a new view to the…
Q: Why plant breeders intend to change the inheritance of crop plants? How plant breeders can change…
A: Heredity is the sum of genetic endowment that is obtained from the parents. It is the transmission…
Q: What are the possible genotype and phenotype of offspring with a parent of two heterozygous tall pea…
A: Phenotype is the term used in genetics for various types of observable traits or characteristics of…
Q: Using the pedigree chart shown answer question . What is the likelihood that the progeny of IV-3 and…
A: The pedigree is the family tree diagram used to represent the pattern of inheritance in the family.…
Q: In Mendel's genetic experiments many characteristics of the plants were quantified, such as their…
A: Mendel uncovered the fundamental laws of heredity. His experiments demonstrated that the inheritance…
Q: With chickens, the trait for rose comb (R) is dominant over the trait for a single comb (r). A…
A: Mendel described some special types of crosses that can be used to check the inheritance of a…
Q: Pea plants can have yellow seeds or green seeds. Which conclusion about the meaning of Y is correct…
A: The trait is a character which we have inherited from our parents and then it will be passed to our…
Q: Suppose a plant is heterozygous with genotype Aa. What is the probability that the allele that came…
A: Introduction Sir Gregor Mendel is known as the Father of Genetics. He was the pioneer scientist who…
Q: Suppose you have an AAaa tetraploid plant and it undergo self- fertilization. At least two copies of…
A: The tetraploid plant is the plant having somatic cells with four chromosomes. Here the tetraploid…
Q: What are traits determined by 2 or more genes?
A: Polygenic inheritance is inheritance of single phenotypic trait which is controlled by two or more…
Q: There are no sex-linked traits in corn plants.
A: A trait that is sex-related has a gene on the sex chromosome. The word refers to human features that…
Q: If you were to be conducting an experiment and crossed two plants, one with long stems and one with…
A: Inheritance is the pattern of transmission of genetic information from parents to offspring. In…
Q: What are the importance of phenotyp
A: Phenotype is the physical characteristics of the organism which are observable. It includes…
Q: When Mendel did crosses of true-breeding purple- and white-floweredpea plants, the white-flowered…
A: Gregor Mendel discovered the fundamental rules of inheritance after his studying the breeding of…
Q: A horticulturist runs a test cross with an offspring (F1 generation) purple plant from Question 8.…
A: Note: We don't know what the question 8 is. I am answering the question in assumption that the…
Q: Above is a pedigree chart for the family. What is the relation between the people in Row I and the…
A: Pedigree is a representation of a family tree that describes how the individuals are related to each…
Q: When you crossed the two plants heterozygous for both seed color and seed texture, how many…
A: answer is option d) 4 there were 4 green wrinkled offspring.
Q: Tall plant (D) is dominant to dwaf (d), and purple flower color (W) is dominant to white flower…
A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is…
Q: what will be the offspring if the white grapefruit tree is heterozygous?
A: Grapefruit trees can be white or pink depending on the species. The white grapefruit tree is…
Q: Explain how you could use a test cross to help you determine the genotype of the purple flower with…
A: When attempting to determine if an organism is heterozygous or homozygous for a dominant trait, it…
Q: What is a cross between two parent having one pair of contrasting character called.
A: The genetic crosses are performed to study the inheritance pattern of specific traits. The crosses…
Q: When you crossed the two plants heterozygous for both seed color and seed texture, how many…
A: Law of inheritance was proposed by Mendel during the pea plant experiments. There are three main…
Q: A seed dealer wants to sell four-o’clock seeds that will produceonly a single color of flowers (red,…
A: Incomplete dominance: – Incomplete dominance is also known as partial dominance observed when the…
Q: If you crossed an F1 plant with a plant that was homozygous recessive for both genes (yyrr),how…
A: The genes located on distinct chromosomes segregate independently during gametes formation. The…
in classical genetics what is the expected
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- You experiment with the genetics of height in a plant. You cross a homozygous tall (TT) plant with a homozygous short (tt) plant. Describe what the genotype and phenotype of the F1 progeny would look like if the plants exhibited complete dominance. Now describe the expected results if the trait exhibited incomplete dominance. What about the F2 progeny, assuming you crossed the F1 progeny with each other?In Mendel's genetic experiments many characteristics of the plants were quantified, such as their height (tall or short), flower position (axial or terminal), and seed color (colored or white). Suppose 100 plants are measured, and 37 are tall with axial flowers and colored seeds. Further, suppose a total of 26 plants have white seeds, 4 of them being short and 7 having terminal flowers. There are no short plants with terminal flowers, and the total number of short plants is 12. What is the probability a randomly selected plant will have flowers in the terminal position? Round your answer to THREE DECIMAL places. Also, double check your answer before posting. thank youA type of fast plant strain that can be used to study genetics is yellow green leaf in which the homozygous recessive plant will have pale yellow-green leaves. Predict the F1 generation phenotype of a cross between a dwarf rosette plant and a pale yellow green plant. short and green short and yellow-green tall and yellow-green tall and green
- The text outlines some of the problems Frederick William I encountered in his attempt to breed tall Potsdam Guards. a. Why were the results he obtained so different from those obtained by Mendel with short and tall pea plants? b. Why were most of the children shorter than their tall parents?Use a Punnett square to predict the offspring in a cross between a dwarf pea plant (homozygous recessive) and a tall pea plant (heterozygous). What is the phenotypic ratio of the offspring?Describe one of the reasons that made the garden pea an excellent choice of model system for studying inheritance.
- 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 decide to have a child if the test results said that you carry the mutation for breast and ovarian cancer? The heart disease mutation? The TSD mutation? The heart disease and the mutant alleles?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?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?Using Mendel’s lines of peas, describe how you would use a test cross experimental design to determine the genotype of a pea plant with purple flowers. Be very specific in describing your experimental design and how you would interpret your results based on the proportion of offspring phenotypes. Make sure to include all possible offspring phenotypes in your answer and what the proportion of phenotypes tells you about the purple plant genotype.The gene for lengths of stem in a garden pea plant results in either tall or short stems, with tall being the dominant trait. Pretend you are a geneticist and, for the purpose of an investigation, you would like to determine if a tall pea plant is homozygous dominant or heterozygous. Explain your reasoning using Punnett squares. Be sure to give the expected results of each Punnett Square you draw.