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You are consulting with a family where sometimes a mutation that leads to deafness (D) and...
You are consulting with a family where sometimes a mutation that leads to deafness (D) and a mutation that predisposes individuals to early heart failure (H) are linked. Normally these two traits sort independently but, in some individuals, a reciprocal translocation has moved them to the same chromosome. The chromosome maps for an individual with two normal chromosome pairs (Normal Arrangement), and a translocation heterozygote (Translocation Arrangement) are shown below. Deafness and early heart failure are both inherited in a...
Information Flag question Information text You are consulting with a family where sometimes a mutation that leads to deafness (D) and a mutation that predisposes individuals to early heart failure (H) are linked. Normally these two traits sort independently but, in some individuals, a reciprocal translocation has moved them to the same chromosome. The chromosome maps for an individual with two normal chromosome pairs (Normal Arrangement), and a translocation heterozygote (Translocation Arrangement) are shown below. Deafness and early heart failure are...
Background Information for Question 1: . Question 1 A) If a translocation heterozygote mates with someone who is not deaf and has normal heart function, what is the likelihood of an offspring being deaf and suffering from early heart failure? Show all your work. (Assume no crossing over between D and H in a translocation heterozygote.) (2 marks) . Question 1 B) The youngest brother (deaf, no evidence of heart failure yet) has children with a woman who is not...
In Drosophila (fruit flies) the genes how, dumpy and ebony are located on chromosome 3. LOF = loss of function. Flies homozygous for a LOF mutation (no gene product made) in ebony have dark black bodies. Flies homozygous for a LOF mutation (no gene product made) in dumpy have truncated (short) wings. Flies homozygous for a partial LOF mutation (some gene product made but significantly less than normal) in how have wings that will not fold down (held out wings;...
need help with 1 and 2 please. X-linked Recessive Traits Review X-linked traits in your textbook. 1 In cars, the Ballele produces black fur & b produces orange fur. This gene is X-linked (X & X". Both colors are expressed in heterozygotes calico). If alcat has 2 calico kittens, 1 male black kitten, and I female orange kitten, what is the ty p henotype of the father cat? (Hint: Work backwards & use a Punnett square Remember that not every...
for questions 25 - 26 using the letters below. This set of questions refers to Mendel’s plants with either Purple flowers or White flowers A. PP B. Pp C. pp D. PP or Pp E. Pp or pp F. PP or pp G. none of these answers 25. A purple flowering pea plant of unknown genotype would be best described by which answer above 26. To determine the genotype of a purple flowering plant of unknown genotype, you would cross...
You have three genes on the same chromosome - A, B and C. Each gene has two alleles in a dominant/recessive relationship. For these genes the homozygous recessive has the mutant phenotype for that trait, the dominant phenotype = wild type for that trait. allele A is dominant to a; phenotype a = mutant for trait a; phenotype A = wild type for trait A allele B is dominant to b; phenotype b = mutant for trait b; phenotype B...
You have three genes on the same chromosome - A, B and C. Each gene has two alleles in a dominant/recessive relationship. For these genes the homozygous recessive has the mutant phenotype for that trait, the dominant phenotype = wild type for that trait. allele A is dominant to a; phenotype a = mutant for trait a; phenotype A = wild type for trait A allele B is dominant to b; phenotype b = mutant for trait b; phenotype B...
Multiple Choice 1. You count 1000 seeds from a monohybrid cross (i.e., single-locus heterozygote crossed with single-locus heterozygote). How many seeds do you expect to display the dominant phenotype? a. 1000 b. 750 c. 500 d. 250 2. Which of the following is among the purposes of a genetic dissection analysis? a. To determine how two alleles at a locus interact with one another. b. To determine the order of intermediaries in a genetic pathway. c. To determine whether a...
Part I— Just Bad Luck? Brrrring! Brrrring! Jane checked the caller ID on her phone. “Sam! Great!” she thought. It was always nice to get a call from her older brother. But a little twinge of worry tugged at her. It was just a couple of weeks ago that he had mentioned making an appointment with his doctor about some abdominal pain he had been having. “Hi Sam! It’s great to hear from you,” Jane answered. “Hi Jane. Well I...