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- QUESTION 5. The pedigree below follows the appearance of a rare autosomal dominant condition resulting in malformation of limbs through a family. What is the penetrance of this trait? i.e., What is the ratio between the number of individuals in the pedigree who display the trait (numerator) and the number of individuals you know from the pedigree must have the trait-determining genotype (denominator)? Enter your answer in the form of a fraction without any spaces. e.g., If your answer is “one-fourth”, enter: 1/4Question 2. A widow's peak hairline is a dominant trait and a straight hairline is a recessive trait. What will be the genotypes and phenotypes of children of a homozygous dominant parent and a heterozygous parent? a) Construct a Punnett Square - List gametes in the area with the dashed line and the genotypes of the offspring in the area with the sold line. b) Genotypes of Children-c) Phenotypes of children-Question 3 Review Mendelian genetics. Match the term and its description. Each term can only be used once. The two alleles for a heritable character separate (segregate) during gamete formation and end up in different gametes | Choose ) Each pair of alleles segregates independently of any other pair of alleles during gamete formation [ Choose ] An organism with two identical alleles for a character [ Choose ] an organism's physical appearance | Choose ) the breeding the mystery individual with a homozygous recessive individual [ Choose ) > > > > >
- QUESTION 6 Assume that a researcher is studying coat color in voles. Three strains of white vole have been isolated: milky, blanc, and weiss. White is a recessive trait in each strain. Homozygous white voles are obtained for each strain. Consider the following crosses: milky X weiss = all white progeny (mutant) milky X blanc = all brown (wild-type vole color) blanc X weiss = all brown (wild-type vole color) The conclusion most consistent with these results is O A all three strains have mutations in the same gene. O B. all three strains have mutations in different genes. OC. milky and blanc have mutations on the same gene, weiss has a mutation in a different gene. D. milky and weiss have mutations on the same gene, blanc has a mutation in a different gene. O E. weiss and blanc have mutations on the same gene, milky has a mutation in a different gene.Use this information to answer the next two questions. Multiple alleles control the coat colour of rabbits. ● The dominant allele, C, produces grey colour. The Coh allele produces silver grey (chinchilla) colour when homozygous. The Challele is recessive to both the full colour allele and the chinchilla allele. ● ● The Challele produces a white colour with black extremities (Himalyan) The Ca allele is recessive to all other alleles, and produces no pigment (albino). The dominance hierarchy is C> Cch > Ch > Ca. The table below provides the possible genotypes and phenotypes for coat colour in rabbits. Notice that four genotypes are possible for full-colour but only one for albino. Phenotypes Full Colour Chinchilla Light grey Himalayan Albino JUL Genotypes CC, CCch, Cch, CCª Cch Coh Question 2 (2.5 points) In the first cross, a rabbit with the chinchilla coat colour is mated to a rabbit with a Himalavan coat colour that is known to be homozygous for this trait Calculate the 25 tv MIZA…Question 9 Consider that a certain gene is a maternal effect gene and that the allele for dark brown pigment is incompletely dominant to the allele for no pigment (white). The incomplete dominant phenotype is light tan. If a heterozygous female is crossed with heterozygous male, what will be the phenotypic ratio of the progeny? A) 1 dark brown: 2 light brown: 1 white. B) 3 dark brown: 1 white C). all dark brown D) all light tan E) cannot be determined CS Scanned with CamScanner
- Question 1: In tomatoes, round fruit (O) is dominant to oblong fruit (o). Write as much as possible of the genotypes of: (A) A plant from a homozygous round-fruited stock (B) A plant from an oblong strain (C) A round-fruited plant which resulted from a testcross (D) A oblong-fruited plant which resulted from the cross of two round-fruited ones.Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. Of their children, 16 were heterochromatic and 9 were‑normal. Calculate the chi‑square value for this observation.QUESTION 4 In Mendel's pea plants, round shape (R) is dominant to wrinkled shape (r), and yellow color (Y) is dominant to green color (y). The alleles for seed shape and seed color sort independently. In the parental generation, Mendel crossed a true-breeding round, yellow-seeded plant with a true-breeding wrinkled, green-seeded plant to create an F1 generation. He then crossed the F1 offspring to eachother to create the F2 generation. What is the probability Mendel would observe F2 plants with round and green seeds? O 3/16 O9/16 1/8 01/4 1/2 QUESTION 5 specific example of incomplete penetrance is the human bone disease osteogenesis imperfecta (OI). The majority of people with this disease have a dom utation in one of the hun nonce that produce hme 1 collagen COL1A1 or COL1A2 Raced on the DNA testing of a family with 15 membere amemhare he Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Air
- Question 2. B8 = black Analyze the following dihybrid cross: x bb Bb = black Parents: bb = white LL = short hair U= short hair Gametes: U= long hair Punnett Square: How many of the offspring are: Black, Short Black, Long White, Shart White, LangAll the non-shaded individuals are wild type apart from III.1. III.1 has been proven to have the causative mutation for this Autosomal Dominant condition, but they exhibit no symptoms.What is the percentage level of penetrance for the condition in the diagram?Question 7 Which of the following is inconsistent (not consistent) with inheritance of a maternal effect trait? A) Progeny from the same parents have the same maternal effect phenotype as each other but not their mother. B) Progeny can show a recessive phenotype even though the progeny have dominant genotypes. C) Both parents contribute recessive alleles to an offspring yet it has a dominant phenotype for the maternal effect trait. D) Progeny from the same parents have different traits related to the maternal effect gene in question. CS Scanned with CamScanner