1. Look at the following pedigree showing cases of hemophilia in the European British Royal family. Using only the pattern in this pedigree, what mode of heredity would you predict hemophilia to follow? (Provide an explanation for why you chose that mode)

1. Look at the following pedigree showing cases of hemophilia in the European British Royal family. Using only the pattern in this pedigree, what mode of heredity would you predict hemophilia to follow? (Provide an explanation for why you chose that mode)

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Description: Using the provided image. Using only the pattern in the pedigree what mode of heredity would you predict hemophilia to follow? Provide an explanation for why you choose that mode: 1. Look at the following pedigree showing cases of hemophilia in the E

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter13: Observing Patterns In Inherited Traits

Section: Chapter Questions

Problem 1SQ: A heterozygous individual has a _______ for a trait being studied. a. pair of identical alleles b....

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1 . 3 Below are the results of some blood tests and you need to compare the child's blood type to the parent's blood type and confirm paternity. If there is no way that parents with the indicated blood types could give rise to a child with the child's blood type write 'No'. If it is possible write 'Yes' and include the parent's genotypes. Child Mom and Dad Possible? If Yes Ogenotypes AB and B O. A and B AB and A АВ A and O A and B 2.
1. Use the below pedigree chart to answer the following questions about dimples. The Dimple gene controls whether a person has dimples or doesn't have dimples. Dimples is dominant to no dimples. Place the genotypes of each individual below its symbol. male female 7 10 11 male femake Dimples gene (D) Dimples is dominant to no dimples 12 13 14 A) How many family members have Dimples? B) What is the genotype of individual #3 and 4? C) Can either individual #8 or 9 be homozygous? C) Explain the family relationship that #12 has with # 2.
1) a. Write out all of the gametes that an individual with the following genotype can produce W of of wt wit b. Will the genotypes be in equal or unequal proportions? a. Write out all of the gametes that an individual with the following genotype can produce with t B W. mot b. Will the genotypes be in equal or unequal proportions?
1. If the allelic composition of a gene is Aa, the genotype is said to be (homozygous, heterozygous). What is the probability of having "a" allele in gametes? 2. For a genotype of AaBb, what are the possible allele compositions in gametes? 3. What are the possible genotypes and phenotypes ("A" phenotype or "a" phenotype) in the offspring of a monohybrid cross Aa x Aa? 4. If the organism display a dominant phenotype for a trait ("A" phenotype), how does one determine if the genotype is homozygous or heterozygous? Please use the Punnett square to explain. 5. How many possible genotypes are there in the offspring of a dihybrid cross AaBb x AaBb? What are the possible phenotypes for such a cross? What is the phenotypic ratio for AB : Ab : aB : ab? D Focus 72°F DEA F4 PrtScr Insert Hor F5 F6 F7 F8 F9 F10 F11 F12 24 & 3. 8 E R T Y U
1. In guinea pig, fur color is determined by one gene, and fur length by another independently segregating gene. The black fur allele (B) is dominant to brown fur allele (b) and the short allele (S) is dominant to long fur allele (s). From progeny listed in the following table, provide the probable genotype for the parents of each cross. Phenotype of Progeny Black short black long brown short Parents Black short X Black short Black short X Brown long Black long X Black long 90 17 0 32 16 35 29 14 0 brown long 8 15 2. A mouse with the genotype BbccEeFf is mated with another mouse with BBCCEEFF genotype. What is the probability of obtaining the following genotype in the progeny? a. BBCcEeFF b. BbccEEFf C. BbccEeFF 12 3. Determine the type of gametes that are formed from the following individuals with the given genotype? A. AaBbCc B. AABBCc C. AABbCe
1.) Cystic fibrosis is an inherited recessive disorder that causes especially thick mucus to build up in the lungs and digestive tract. The mucus makes it difficult to clear micro-organisms from the airways, so people with cystic fibrosis are prone to dangerous respiratory infections. Among Caucasians, about one in every 3000 newborns is affected by this condition. Determine the frequency of the cystic fibrosis allele among Caucasians. What proportion of this population would you expect to be heterozygous carriers of the cystic fibrosis allele? Express your answers as decimals.
2. Figure 8.10 In pea plants, round seed shape (R) is dominant to wrinkled seed shape (r) and yellow peas (Y) are dominant to green peas (y). What are the possible genotypes and phenotypes for a cross between RrYY and rrYy pea plants? How many squares do you need to do a Punnett square analysis of this cross?
9. Please determine whether the allele responsible for the trait is dominant or recessive. (A) (B) 1 2 10.For a cross between a female color blind carrier and a male color blind person, what is the probability for the female offspring to be color blind? What is the probability for the male offspring to be color blind? Please explain. 11.Consider the genetic map shown below AD Which two alleles have the highest recombination frequency? Which two have the lowest recombination frequency? O Focus ! 72°F DELL F5 F6 PrtScr Insert Hor FZ F8 F9 F10 F11 F12 23 %24 3. 4. 8 E R T
15. Human blood types is an example of a multiple allele system. Fill in the table below, showing what genotype(s) is/are associated with each phenotype. Use i = type O, IA = type A, IB = type B. Remember blood type is an example of codominance Blood Phenotype Genotype(s) (list all possibilities) AB
3. Short-tailed pup distribution. In mice, the dominant T allele results in a short tail. Homozygous T/T genotype is lethal, which means mouse embryos with this genotype die before they are born. Homozygous t/t is normal, with normal tail. A cross between two short-tailed mice produces a litter of 5 pups. a). What are the genotype(s) of the two short-tailed mice used in the cross? b). What are the possible genotypes and phenotypes of the 5 pups? What are their perspective ratio?
3. The recessive sex-linked gene (h) prolongs the blood-clotting time, resulting in the genetically inherited disease called hemophilia. From the information in the pedigree chart (right), answer the following questions: Hemophilia in humans (a) If 112 marries a normal man, what is the probability of her first child being a hemophiliac? 2 (b) Suppose her first child is actually a hemophiliac. What is the chance that her second child will be a boy with hemophilia? 2 (c) If I14 has children with a hemophiliac man, what is the probability that her first child will be phenotypically normal? (d) If the mother of 12 was phenotypically normal, what phenotype was her father? 4. The phenotypic expression of a dominant gene in Ayrshire cattle is a notch in the tips of the ears. In the pedigree chart on the right, notched animals are represented by the solid symbols. Ear notches in Ayrshire cattle Determine the probability of notched offspring being produced from the following matings: 1 2 (a)…
Genetic Crosses that Involve 2 Traits In rabbits, black hair is dominant to brown hair. Also in rabbits, long straight ears are dominant to floppy ears. These letters represent the genotypes and phenotypes of the rabbits: BB = black hair EE = long ears Ee = long ears ee = floppy ears %3D %3D Bb = black hair bb = brown 1. A male rabbit with the genotype BBee is crossed with a female rabbit with the genotype bbEe The square Is set up below. Fill it out and determine the phenotypes and proportions in the offspring. How many out of 16 have black hair Ве Ве Ве Ве and long ears? bE How many out of 16 have black hair and floppy ears? be How many out of 16 have brown hair and long ears? bE How many out of 16 have brown hair be and floppy ears?