1. In fruit flies, the gene for white eyes is sex-linked recessive. (R) is red and (r) is white. Cross a white- eyed female with a normal red-eyed male.
Q: 6. In starfish, pink body color (P) is dominant to orange (p), and thick eyebrows (T) are dominant…
A: Introduction The observable physical properties of an organism, such as its appearance, development,…
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: 1. How many copies of an X-linked gene does a male have? 2. Will a male be able to give his X-linked…
A: DISCLAIMER : Since you have posted a question with multiple sub-parts, we will solve first three…
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: 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: please answer questions 4 a, b, c, and d.
A: A) The possible gametes of both the parents are BW, Bw, bW, and bw.B) The Punnett square showing the…
Q: 6) In fruit flies, red eyes are dominant (E). White eyes are recessive (e). If the female fly has…
A: If only one copy exists, dominant characteristics are always produced when the linked allele is…
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: 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: 4. In humans, the gene for color blindness is on the X-chromosome. Color blindness is recessive (X)…
A: Colorblindness is a disease where the person looses his/her ability to distinguish between certain…
Q: What is example of sex-linked inheritance? Give also its definition
A: Sex linked traits are found on either one of the chromosomes that determine sex or sex chromosomes.…
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: 4. In Drosophila, eye color is determined by two different genes located on different chromosomes. A…
A: Given information Eye color is determined by two genes. b gene is autosomal and produces brown eye…
Q: 1.In humans, one type of red-green color blindness is a sex-linked recessive. Normal color vision is…
A: A disorder caused by a single mutated gene, inheritable as per mendelian principles, is known as…
Q: Albinism in humans is controlled by a recessive gene (c). From marriages between two normally…
A: Albinism is the genetic disease occured due to abnormal melanin production. Melanin produced is…
Q: 1. A color-blind man married a normal woman. Their daughter, who was phenotypically normal, married…
A: XC = normal X chromosome Xc =Color-blind X chromosome 1). first cross A color-blind man(XcY) X a…
Q: 6. Color blindness is a recessive X-linked trait (a). A woman whose father is colorblind possesses…
A: As colourblindness is an X linked recessive diseases.So, XcXc = Homozygous recessive ,Colourblind…
Q: Red-green color blindness is inherited as an X-linked recessive (Xc). If a color-blind man marries…
A: Color blindness is a genetic disorder that causes a reduced ability to distinguish between certain…
Q: 3. How can a female carrier of an X-linked recessive disorder have a daughter who is affected?
A: If a female is a carrier then one of her chromosomes carries the defective gene.
Q: 5) Assume that a man and a woman are both known to be heterozygotes, Aa, carriers of the autosomal…
A: Alleles are the different variants of a gene. Alleles produce the phenotypic changes in an…
Q: 2. In cats, yellow coat color is due to a gene, b, and black coat color is due to its allele, B. The…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: 2. The following is a pedigree of a family in which a rare form of X-linked colorblindness is found…
A: A pedigree is a diagram depicting the biological relationships between an organism and its…
Q: 5. Brown eyes are dominant over blue. This is NOT a sex-linked trait. If a blue-eyed colorblind…
A: Find: Brown eyes are dominant over blue. What kind of children they expect. If a son married…
Q: 2. In humans, the gene for red-green color vision is located on the X chromosome with no…
A: Genetic inheritance is the process of passing of genetic information from parents to their progeny…
Q: 4. In cats, short hair is dominant to long hair. If a long-haired cat is mated to a pure-bred,…
A: The Mendels laws of Inheritance states that any trait exists as a pair, one is dominant and the…
Q: 3. In Drosophila, an X-linked recessive mutation, scalloped (sd) causes irregular wing Diagram the…
A: X libked recessive inheritancemeans that the mutation occurs on the X chromosome. Thus the female…
Q: 1. Two normal-visioned parents produce a colour-blind son. What are the genotypes of the parents?…
A: As per our honor code, we are allowed to answer one question at a moment. You have posted multiple…
Q: 2. In humans, widow's peak (W) is dominant over a continuous hairline (w), and short fingers (F) are…
A: Widow peak refers to the hairline which is characterized by the V-shape point in the middle of the…
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: 5. The following recessive traits are found in fruit flies: vermilion eyes are recessive to red…
A:
Q: 7. Take a look at the following families and decide if the trait is autosomal dominant, autosomal…
A: The functional unit of chromosome that transcribes into protein is called gene. And genetic…
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: Perception of a bitter taste from phenylthiocarbamide (PTC) is dominant (T) to not being able to…
A: Albinism is passed on in an autosomal recessive inheritance pattern. . This means a child has to…
Q: 6. In man, normal color vision vs red-green color blindness is controlled by the allelic gene C…
A: The colorblind trait is encoded by genes present on the X chromosome. It is a kind of recessive…
Q: 3. In Drosophila, an X-linked recessive mutation, scalloped (sd) causes irregular wing margins.…
A: A) a scalloped female is crossed with a normal male: - Xsd Xsd × X Y Xsd Xsd X Xsd X Xsd X…
Q: 1. In pea plants, yellow color (Y) is dominant over green color (y). A yellow-colored pea plant is…
A: A genotype is the collection of genes in an individual. A pair of genes codes for a specific trait…
Q: 2. The bison herd on Konza Prairie has begun to show a genetic defect. Some of the males have a…
A: Introduction: Dominant allele: It is able to express itself even in the presence of its recessive…
Q: 6. Everyone in Squidward's family has light blue skin, whieh is the dominant trait for body color in…
A: *Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: 1. Consider blue eyes in man as recessive to brown eyes. Show the expected children of a marriage…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homozygous…
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: 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: 1. In Drosophila, yellow body is due to an X-linked gene (XY) that is recessive to the gene for grey…
A: Heterozygous gray female represented as- X+ Xy Yellow male- XyY X+ Xy XY X+ Xy (grey, as…
Q: 4. An albino corn snake is crossed with a normal-coloredcorn snake. The offspring are all…
A: A genetic cross is the purposeful mating of two individuals resulting in the combination of genetic…
Q: 8. Concerning the sex chromosomes, which of the following is correct? The Y chromosome carries a…
A: Humans have two types of sex chromosomes: X chromosome and Y chromosome. If a person possesses two X…
Q: 5. In German cockroaches, bulging eyes (bu) are recessive to normal eyes (bu*), and curved wings…
A: Linkage is the close association of genes or other DNA sequences on the same chromosome. The closer…
Q: 3. Pattern baldness is a recessive sex-linked trait. Jake has a full head of hair. His wife Jeannie…
A: It is required to determine the genotype of Jeannie and the chances that the children will have…
Q: 4) A red flower (Rr) is crossed with a white flower (rr). 5) A white flower (rr) is crossed with a…
A: # According to our guideline we can answer only the first question or up to fast three some parts of…
Q: 1. Color blindness is a trait carried on the sex chromosomes. Let C be normal color vision and e b…
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- 8. In certain breeds of dogs, two different sets of alleles determine the color pattern. Black color is dominant and red color is recessive; solid color is dominant and white spotting is recessive. A homozygous black-and-white spotted male is crossed with a red-and-white spotted female. What is the probability of their producing a solid black puppy? Show your work.Punnet square problems A=Codominant; B=Codominant; O=Recessive Mary is homozygous for type A blood. Steve is homozygous for type O blood. If they have children, what are the possible phenotypes and genotypes of their children, and what is the probability of each? Mary and Steve have a son, Brad. Brad’s wife, Samantha is heterozygous for type B blood. If they have children, what are the possible phenotypes and genotypes of their children, and what is the probability of each? Stella loves roses and decides to cross her red rose with her white rose. All of the resulting offspring of this cross are pink roses. What can you say about the red and white alleles as a result of this cross? Stella decides to cross two of the pink roses. What are the possible genotypes and phenotypes of the offspring and the probabilities of each? DNA replication, Transcription and Translation problems It is S phase of the cell cycle, and time to replicate the cell’s DNA. Using the following strand of DNA…Home Work Practice (No points) 7. One of the seven characteristics that Mendel evaluated was pod color. Suppose Mendel crosses true-breeding plants with green pods with true breeding plants that have yellow pods. He harvests seeds from this cross and plants these seeds at the beginning of the next gardening season. All of these plants produce green pods. The F1 plants are allowed to self-hybridize and these seeds are planted to produce an F2 generation. A.What does true breeding tell you about genotype? B.In words, state the genotype of all individuals in the F1 generation. C.Using appropriate symbols, state the genotypes of the parents and the F1 generation. D.Predict the expected proportions and the genotypes of members of the F2 generation, assuming complete dominance E.Predict the expected proportions and phenotypes of members of the F2 generation, assuming complete dominance.
- Subject: Genetic problems 6. how would you recognize a line of garden peas that had become genotypically pure for a given trait? 7. A cross of two pink-flowered plants produces offspring whose flowers are red, pink, or white. Defining your genetic symbols, give all the different kinds of genotypes involved, and the phenotypes they represent. 9. In snapdragons, red flowers (R) are incompletely dominant to white (r), the hybrid being pink; narrow leaves (N) are incompletely dominant to broad leaves (n), the hybrid being intermediate in width ("medium"). show the genotypes and phenotypes for the progeny of a cross between a. red medium and pink medium plant b. a pink medium and white narrow c. two identical dihybrids 12. In guinea pigs, short is dominant to long. A short-haired guinea pig was mated to a long-haired one. What proportions of the offspring (F1) will be expected to be: a. homozygous short-haired b. homozygous long -haired c. heterozygous short-haired d. heterozygous…I. OBJECTIVES At the end of the activity, the students are able to: A observe the separation and independent assortment of alleles: B. demonstrate the inheritance of dominant and recessive traits, codominance. and incomplete dominance: and C. construct a model of a dragon based on the characteristics inherited from the parent dragons. II. MATERIALS Writing materials 2 Five-peso coins 2 One-peso coins 2 Twenty-peso coins Ill. PROCEDURE I. In this activity. you and a partner will work together to produce o baby dragon from the random mixing of genetic traits. Each student will be a surrogate dragon parent. Surrogate dragon parent partners must be of the opposite sex. therefore the female has X/X chromosomes white the male has X/Y chromosomes. You can ask your parent. sibling. or relative to work with you Or you Can work with your Classmate. 2. Each partner must have three different coins -- one of each color of autosome (green and yellow autosomes). and one sex chromosome coin_ You can…23. In horses, black color is influenced by the dominant allele B and chestnut coat color is influenced by the recessive allele b. Trotting gait is due to a dominant allele T, pacing gait to the recessive allele t. A black trotter who is homozygous for both traits is crossed to a chestnut pacer. a. What are the genotypes of the Pgeneration? b. What will be the genotype and phenotype of the F1 generation? c. Draw a punnett square showing the cross of two F1 generation horses. What is the phenotypic ratio of all the combinations?
- 7) Skin color is a complex trait and while just a few genes account for the major difference between light and dark skin color, dozens of other genes participate. Assume in this hypothetical scenario there are only two genes for skin color, A and B. Each gene exhibits incomplete dominance. AABB (homozygous dominant for both genes) results in the darkest skin color and aabb (homozygous recessive for both genes) results in the lightest skin color. Tomas is heterozygous for both genes; his partner, Helga, is heterozygous for the A gene and homozygous recessive for the B gene. Construct a Punnett Square showing the cross of this couple. What are the expected genotypes and phenotypes of the children this couple could have?D) Genetics Problem show the table and word In certain breeds of chickens, the allele "B" is responsible for black feathers whereas the contrasting allele "b" produces feathers that are white. Another r pair of alleles influences the shape of the feathers. "F" produces straight feathers whereas the contrasting gene for "f results in the frizzled condition. Give the genotypic and phenotypic ratios to be expected from the following cross: white, frizzled hen with a heterozygous black, homozygous straight rooster. Genotypic Ratio: Phenotypic Ratio:1. In humans, widow’s peak (W) is dominant over having a straight hairline (w). If a homozygous man with a widow’s peak has a child with a woman with a straight hairline, what are the odds the child will have a widow’s peak? Show work. 2. Ellis-van Creveld syndrome is a recessive inherited condition that results in 6-fingered dwarfism. Two parents without this condition have with Ellis-van Creveld syndrome. What are the genotypes of the parents and offspring? What are the odds that the son will have a 6-fingered child if his partner is a woman who is heterozygous for the condition? Show work. 3. The gene for dangling earlobes is dominant over the gene for attached earlobes. A woman with attached earlobes has a child with a man with dangling earlobes whose mother had attached earlobes. What is the probability that this child will have attached lobes? Show work. 4. In humans, normal pigmentation is due to a dominant gene, while albinism is recessive. A normally pigmented man has a…
- Problem: A homozygous tall, homozygous white flower plant crosses with a homozygous short, homozygous purple flower plant. We know that the purple and tall flowers are the dominant traits. Show your work. What are the phenotypes of the offspring?4. In cattle, roan coat color is an example of an autosomal, co-dominant phenotype. Roan (CrCw) cattle are produced from the mating of a white (CwCw) cow to a red cow (CrCr). Predict the phenotypic and genotypic frequencies of offspring from each of the following crosses: 1. Roan x White 3. Red x White 2. Roan x Red 4. Roan x Roan7. In horses coat color shows incomplete dominance: the alleles are chestnut color (Hc) and cremello (Hcr); heterozygous individuals have the phenotype palamino. What are the predicted phenotypes from a cross between a palamino and cremello colored horses? What are the genotypes?
