Locus A has two alleles (A and a) while locus B has two alleles (B and b). The recombination frequency between locus A and locus B is 17%. A F1 heterozygote in trans-configuration is mated with an aabb individual. What are the expected phenotypic percentages in the resulting progeny? Round your percentages to the nearest tenths and in the following format, replacing the "0.0" with your percentages:
----------% AB/ab, ---------------% ab/ab, --------------- % Ab/ab, ----------------- % aB/ab
Locus A has two alleles (A and a) while locus B has two alleles (B and...
The agouti locus in mice has three alleles a, A and AY. Use the following cross results to answer the following questions. P: aa (black) x AA (agouti) --> F1: all agouti --> F2: 3 agouti : 1 black P: AYa (yellow) x AYa (yellow) --> F1: 2/3 yellow : 1/3 black P: AA (agouti) x AAY(yellow) --> F1: 1/2 agouti : 1/2 yellow a) The AY allele is dominant for yellow coat color. (Click for List) True False b)...
Genes A and B are linked. Individual plants homozygous for different combinations of these genes (AABB, aabb, AAbb, aaBB) were crossed at random to produce F1 plants. The F1 plants were self pollinated to produce the F2. The F2 progeny from six of the F1 self pollinations are listed below. Number of F2 plants in each phenotypic class F1 Plant-------------------AB--------------- Ab --------------- aB----------------- ab 1 --------------------------0 ----------------98 ---------------- 0------------------ 32 2 ------------------------- 64 --------------10 -----------------8...
Consider a locus with two alleles - B and b. B is dominant, while b is recessive. There is no mutation. B has a selective advantage relative to b, so that the fitnesses of the three genotypes are BB = 1, Bb = 1, and bb = 1-s. In this case, s = 0.50, so that bb homozygotes have 50% fitness of heterozygotes and BB homozygotes. If the population has the following genotypic counts prior to selection of BB =...
Consider a locus with two alleles - A and a. These alleles are codominant, meaning that the fitness of the heterozygote is halfway between either homozygote. Consider further a population of randomly mating green frogs where the genotype counts are AA = 500, Aa = 250, and aa = 250. In this population the relative fitnesses of each genotype are AA = 1.00, Aa = 0.80, and aa = 0.60. What is the expected allele frequency change for A after...
Consider a locus with two alleles - A and a. These alleles are codominant, meaning that the fitness of the heterozygote is halfway between either homozygote. Consider further a population of randomly mating green frogs where the genotype counts are AA = 500, Aa = 250, and aa = 250. In this population the relative fitnesses of each genotype are AA = 1.00, Aa = 0.80, and aa = 0.60. What is the expected allele frequency change for A after...
4. A population has two alleles at the height locus. The Tallele is form the tail ons short trait. T is dominant to t. The frequency of the tall phenotype is found to frequency of the short phenotype is found to be 0.64 (64%). Assuming the pop Weinberg Equilibrium, what are the values for p (frequency of the T alle t allele)? Give an actual number. Space for calculations ne i allele is form the tall trait, and the t...
a) The trait for eye color in a population has two alleles at one locus. The frequency of the homozygous dominant is 0.1521. If the population is in Hardy-Weinburg equilibrium, what is the frequency of the recessive allele in the population? b) The trait for lactose tolerance in a population has two alleles at one locus. The lactose tolerance trait is dominant and the lactose intolerance is recessive. The frequency of the lactose tolerance phenotype is 0.75. If the population...
3. In goats, two linked, autosomal genes control fur texture and temperament, as follows: rough fur (R) is completely dominant to smooth fur (c) and calm temperament (T) is completely dominant to stubborn temperament (t). You cross a true-breeding rough fur, calm temperament goat to a true breeding smooth fur, stubborn goat a Write out the genotypes of the following individuals from the crosses described above. Write the alleles as they appear on chromosomes. 1. true-breeding rough fur,calm temperament: il...
1.)If the population frequencies of two alleles at a locus are B = 0.5 and b = 0.5, what is onepossible set of frequencies for the three resulting genotypes that would NOT reflect Hardy- Weinberg equilibrium? 2.)In a population that is in Hardy-Weinberg equilibrium, the frequency of the homozygous recessive genotype is 0.09. What is the frequency of individuals that are homozygous for the dominant allele? 3.)In humans, Rh-positive individuals have the Rh antigen on their red blood cells, while...
Let A and B represent two variants (alleles) of the DNA at a certain locus on the genome. Assume that 40% of all the alleles in a certain population are type A and 30% are type B. The locus is said to be in Hardy-Weinberg equilibrium if the proportion of organisms that are of type AB is (0.40)(0.30) = 0.12. In a sample of 300 organisms, 42 are of type AB. Can you conclude that this locus is not in...