In humans, suppose that the allele for free-hanging earlobes, E, is dominant over the allele for attached earlobes, e. Additionally, suppose that the allele for no cheek dimples, D, is dominant over the allele for cheek dimples, d. A dihybrid cross between two individuals who are heterozygous for both traits is performed. A. What is the probability that their offspring will have the genotype EEDd? B. What is the probability that their offspring will display at least one dominant trait?
Q: A male black (BB) and polled (PP) Angus is crossed with a female black (BB) and horned (pp) Angus.…
A: In genetics the genes are the hereditary units of life. The genes have two alternative forms called…
Q: Assume that in Michigan squirrels, dark brown fur (B) is dominant to black fur (b). If you mate a…
A: Given Brown fur(B) dominant Black fur (b) recessive Parents Homozygous brown (BB) Homozygous…
Q: A. From the data given, determine if alleles of one, two, or three genes are generating these traits…
A: Diploid organisms has two sets of chromosomes. Thus, they carry two copies of almost all genes.…
Q: In cattle, black wool color W is dominant over white w, the heterozygous being roan. In the…
A: Given, Black wool color : WW White wool color: ww Heterozygous Roan color : Ww
Q: Theoretically, what is the expected result from the parental cross of a grey mouse and an albino…
A: Each gene has two alternative forma known as alleles, which code for different versions of a…
Q: A heterozygous black pig is mated with a homozygous black pig. (a) What are the genotypes of the…
A: The alleles are generally of dominant and recessive type and some other forms like codominant are…
Q: A couple both with blue eyes have a kid with brown eyes. In this case, the eye color is determined…
A:
Q: Based on the information you discovered in the previous problem, answer the following:a. A female…
A: Genes are the basic unit of inheritance and are responsible for all the observable and genotypic…
Q: In a species of tropical fish, a colorful orange andblack variety called montezuma occurs. When…
A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…
Q: The allele for red feather color in pigeons, R, is dominant to the allele for brown feathers, r. A…
A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Dihybrid Cross: Dimples and broad eyebrows In humans, the allele for dimples (D) is dominant to the…
A: Cross between two characters or two pairs of traits is known as dihybrid cross. Mendel proposed law…
Q: A researcher crosses mice with apricot eyes and long tails, and the F1 progeny were recovered in the…
A: Chi square test is used to find the statistical results of a problem in which the null hypothesis is…
Q: A cross between individuals with the genotypes AaBb and aabb produces 1000 offspring. The aabb class…
A: Dihybrid cross is a cross between two individuals that have two observable contrasting…
Q: To determine whether a particular trait is autosomal or sex-linked, scientists or breeders would…
A: Reciprocal cross occurs between female and male parents, in this, both parents are crossed by…
Q: An aquatic arthropod called a cyclops has antennae that are either smooth or barbed. The allele for…
A: The allele for barbed is dominant that is 'B' and the allele for smooth is recessive consisting 'b'…
Q: A cross between a black-furred male dog and a white-furred female dog could produce offspring with a…
A: Non-mendelian inheritance is a pattern of inheritance in which the laws stated by Mendel do not…
Q: dihybrid cross
A: The dihybrid cross is defined as the mating between 2 organisms which are each heterozygous for 2…
Q: A person is heterozygous for the Freckles phenotype (Ff) and also heterozygous for the PTC-tasting…
A:
Q: Duchenne muscular dystrophy is sex linked and usuallyaffects only males. Victims of the disease…
A: Duchenne muscular dystrophy is an X-linked recessive disorder. Males have an XY chromosomal pattern,…
Q: dominance effect of alleles at the R locus. a) How many different gametes are possible in the…
A: Trihybrid cross The cross involve 3 pairs of contrasting traits of three characters is called…
Q: The A & B antigens in humans may be found in water-soluble forms in secretions, including saliva of…
A: Antigens are generated in the human body by the allelic activity of the A, B, and O group loci in…
Q: In sheep, lustrous fleece results from an allele (L) that is dominant over an allele (l) for normal…
A: According to Mendelian inheritance, a single character is controlled by one or more genes and each…
Q: Hemochromatosis is an inherited disease caused by arecessive allele. If a woman and her husband, who…
A: Hemochromatosis is a hereditary disease in which the iron from the blood gets deposited into the…
Q: In the flower plant named Four o’clock, R is the allele for red color and W is allele for white…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: raccoons may have wide, medium-sized, or narrow bands around their tails. They may also have the…
A: Wide bands =Dominant trait Narrow bands =recessive trait Washing food = dominant trait no washing =…
Q: In roan bulls, alleles for both red and white hair are codominant (BRBW). What is the percentage of…
A: Codominance is an inheritance pattern where both the alleles of a heterozygote express themselves…
Q: In some aliens, one center horn (A) is codominant with two horns (B). If an alien inherits both…
A: When two alleles of a gene are have normal dominant-recessive inheritance pattern, dominant…
Q: Scale color in a lizard species is inherited via a single gene with 6 different alleles. (a) How…
A: Apart from the openings of eyes, mouth, nostrils, and cloaca, most of the lizards are totally…
Q: In pigs, an allele that produces a white belt around the animal’s body (W) is dominant over its…
A: Genotypes are the letters that make up the individual. While the phenotype is the particular…
Q: A dihybrid cross AaBb X AaBb is made in which B is dominant and b is recessive, but there is no…
A: Genes are the basic structural and functional units of heredity and the study of genes is called…
Q: In a dihybrid cross of two bi-allelic Mendelian genes, A (two alleles – completely dominant A and…
A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…
Q: The fruit fly, Drosophila melanogaster, a vestigial female fly is mated to a male that is scarlet…
A: Coefficient of coincidence is the ratio between the number of observed double crossovers and the…
Q: Pigment in mouse fur is only produced when the C allele is present. Individuals of the cc genotype…
A: Epistasis is a phenomenon in which the expression of one gene is dependent on the presence or…
Q: A homozygous red flowered plant (RR) is crossed with a homozygous white plant (rr). Justify your…
A: A Trait is characteristic features that is unique to particular individual . A monohybrid cross is a…
Q: Phenylketonuria (PKU) is a disorder caused by a recessive allele. Two carrier individuals have…
A: "Inheritance" is the process through which a child gets genetic information from his or her parents.…
Q: shows the results of a dihybrid cross involving seed shape and seed color. a. What proportion of the…
A: Let the seed shape be RR and seed seed colour be YY
Q: In some chickens, the gene for feather color is controlled by codiminance. The allele for black i B…
A: The chicken is a subspecies of the red jungle fowl. It is a type of domesticated fowl. Rooster or…
Q: For the purpose of the assignment, we will refer to XY individuals as male and XX individuals as…
A: Genetics is the branch of biology that deals with the study of genes, their variation, and heredity…
Q: When crossing a normal hen with a short-legged rooster, all the normal hens and all the short-legged…
A: Alleles are the alternative forms of a gene. Alleles can be dominant or recessive.
Q: Assume that in horses, black coat colour is dominant (B) to chestnut colour (b). The troting gait is…
A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…
Q: Consider a guinea pig with a homozygous genotype and a white fur color phenotype. a. What is the…
A: The alleles are generally of dominant and recessive type and some other forms like codominant are…
Q: . Male house cats are either black or orange; females areblack, orange, or calico.a. If these…
A: Part A. As per the date, these traits are X-linked. As we know that cats have X linked orange locus…
Q: In Find the genotype of the missing parent. In Andalusian fowls, the black (B) and white (W) alleles…
A: 1. The genotypes of missing parents will be - BW and WW. 2. The probability of black offspring (BB)…
Q: To figure out the outcome of a cross, set up a Punnett square.a. Put the gametes of one parent at…
A: Introduction Tri-Hybrid cross deals with the three contrasting traits which are governed by three…
Q: AаBBсс X АаBbСс State phenotype ratios with allele symbols where: A_ = Dominant phenotype; aa =…
A: Genotype is the genetic constituent present in the organism. Phenotype refers to the morphological…
Q: In humans, having dimples is dominant over not having dimples. In the Punnett square below, show a…
A: There are three laws of inheritance given by Mendel that explains the process of inheritance.…
Q: the world of Weeping angels, those with pointy wings are (A_), while those with round wings are…
A: Dominant allele express its characteristic when it is independently expressed without the help of…
Q: In one species of plants, the red color of the flowers (CR) is incompletely dominant over the white…
A: The condition in which both of the heterozygote influence the phenotype is called incomplete…
Q: Mice of the genotypes A/A ; B/B ; C/C ; D/D ; S/S anda/a ; b/b ; c/c ; d/d ; s/s are crossed. The…
A: A for agouti is dominant over recessive allele a for solid or nonagouti. Allele C is for pigmented…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- In the shorthorn breed of cattle, The red and white coat colors are codominant with each other with the resulting hit rosagas condition being roan. A breeder has some white, some Roan, and some red cattle (female) And only one round bull (male).  A. What color cow would be bread to the ro bowl to guarantee the best chance of having white offspring? B. What is the probability of a red cow cross with the Roan bull resulting in a white half? explain by using parent and possible offspring genotypes.  C. What is one possible way that the farmer can guarantee having over red offspring by going outside of his breeding stock? Explain by using parent and possible offspring genotypes. Imagine a cross between a man and a woman having the following genotypes: Genotype of the Husband Genotype of the Wife Aa bb Dd Gg Hh RR Tt X Aa Bb Dd gg Hh Rr Tt Suppose, that the A allele exhibited incomplete dominance over the a allele and the T allele exhibited incomplete dominance over the t allele. In that instance, how many different phenotypes would be possible among the offspring of this same couple?In rabbits, the gene for fur color is multiallelic. Agouti (C) is dominant to chinchilla (Cch), chinchillas is dominant to himalaya (Ch), and himalaya is dominant to albino (c). Determine the genotypes of each corresponding phenotypes. Please show the solution.
- Given a cross between these two parents: BbCcDDEEFfGgHhjj x BbCcddEeFfGgHHjj where traits B, E, H, J exhibit Mendelian inheritance; C, and F exhibit incomplete dominance; D, and G exhibit co-dominance answer the following: How many phenotypes can be expected from the cross?In roan bulls, alleles for both red and white hair are codominant (BRBW). What is the percentage of genotype and phenotype if a roan cattle is bred to, (a) a homozygous red cow (BRBR), (b) a heterozygous white cow (BWBw).A cross between a black-furred male dog and a white-furred female dog could produce offspring with a black-and-white coat. This means that the color coat traits of the parents are codominant as both were expressed together. Show a cross between a Black-white furred dog and a homozygous white dog. Indicate the genotypes of both parents and the possible outcome in percentage.
- The A & B antigens in humans may be found in water-soluble forms in secretions, including saliva of individuals with the genotypes E/E& E/e, but not individuals with the genotype e/e. Thus, the population contains ‘secretors’ & ‘nonsecretors’. A cross was performed between 2 heterozygous secretors, one with type O blood and the second with type AB blood. What phenotypic ratios are expected in their offspring? A) 1/4 type A : 1/4 type B : 1/2 non-secretor B) 3/8 type A : 3/8 type B : 2/8 non-secretor C) 1/2 type A : 1/2 type B D) 3/4 type AB : 1/4 non-secretorAssume that the trihybrid cross AABBrr x aabbRR is made in a plant species. Assume that A and B are dominant alleles, but there is no dominance effect of alleles at the R locus. a) How many different gametes are possible in the F1generation? What are the genotypes of these gametes? b) What is the probability of the parental aabbRR genotype in the F2 progeny? c) What proportion of the F2 progeny would be expected to be homozygous for all three genes?Phenylketonuria (PKU) is a disorder caused by a recessive allele. Two carrier individuals have progeny. Answer the following questions in order and show solutions whenever relevant. a. Indicate the gene notation.b. Derive the expected genotypic and phenotypic ratios.c. If they have a normal child, what is the probability that he or she will be heterozygous?d. If they have three children, what is the probability of having 2 affected children and one normalchild?
- Theoretically, what is the expected result from the parental cross of a grey mouse and an albino mouse, and why does the expected result not match the result stated in the information given above? Select one: a. Theoretically, there should be a 3:1 ratio of grey mice to albino mice, or 29 grey coat mice and 9 albino mice. With more litters, the actual results would match the expected results more closely. b. Theoretically, 100% of the mice should have grey coats so all 38 offspring should have grey coats. There was an experimental error that can account for the deviation. c. Theoretically, there should be a 3:1 ratio of grey mice to albino mice, or 28.5 grey coat mice and 9.5 albino mice. There was an experimental error that can account for the deviation. d. Theoretically, there should be a 1:1 ratio of grey mice to albino mice, or 19 grey coat mice and 19 albino mice. With more litters, the actual results would match the expected results more closely.In pigs, an allele that produces a white belt around the animal’s body (W) is dominant over its allele for a uniformly colored body (w). The dominant allele of another gene (F) produces fusion of the two hoofs on each foot. Suppose a uniformly-colored sow homozygous for fused hoofs is mated with a normal-footed boar heterozygous for the belted character. (a) What are the genotypes of the parents? (b) What are the genotypes and phenotypes of the F1 offspring? (c) If the two resulting genotypes of the F1 are allowed to interbreed, what are the genotypic and phenotypic ratios of the F2? (Show your work below)Assume that one of the students in your class is homozygous for the “Type A” allele and the other student is homozygous for the “Type B” allele. What blood type(s) would you expect to see in their offspring? What if the second was instead “Type O”? Cross two individuals who both have Type AB blood. What are the expected genotypic and phenotypic ratios in their offspring? PTC paper placed in your mouth can determine if you are a “taster” or a “non-taster”? Let's assume that you are a "taster". What possible genotypes could produce your phenotype? If you produced children with a "non-taster", what genotypic and phenotypic ratios would be expected in your offspring?