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LABORATORY 16-GEN 1. pink-flowered sady for these toll red-flowered plants are crossed 21) More Incomplete Dominance:...
Two orange-flowered plants are crossed and the offspring are 101 orange flowered plants, 34 red flowered...
Two orange-flowered plants are crossed and the offspring are 101 orange flowered plants, 34 red flowered plants and 45 yellow flowered plants. The genetic system controlling flower color in these plants, most likely is 1 locus, two alleles, incomplete dominance 1 locus, three alleles, complete dominance 2 loci, each with two alleles, complete dominance, epistasis 2 loci, each with two alleles, complete dominance, novel phenotypes 2 (or more) loci, contributing and non-contributing alleles, polygenic inheritance
II. MONOHYBRID PROBLEMS WITH INCOMPLETE DOMINANCE 8. Petunia flower color is governed by two alleles, but...
II. MONOHYBRID PROBLEMS WITH INCOMPLETE DOMINANCE 8. Petunia flower color is governed by two alleles, but neither allele is truly dominant over the other. Petunias with the genotype R R are red-flowered, those that are heterozygous (R W ) are pink, while those with the (WW ) genotype have white flowers. This is an example of incomplete dominance. a. If a white-flowered plant is crossed with a red-flowered plant, what is the genotypic ratio of the F1? __________________________________________________________ b. What...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered plants were crossed. What is the probability of each color appearing in the F2 generation? Red 2so Pink White A cross is made between a red flower and a pink flower (assume incomplete dominance). What is the probability of producing a white-flowered plant? 2b. EXTRA CREDIT In rabbits, the genotype BB produces a black coat color, but Bb produces a brown coat color. Rabbits...
INCOMPLETE DOMINANCE A red snapdragon is crossed with a white snapdragon. The resultant offspring gives pink...
INCOMPLETE DOMINANCE A red snapdragon is crossed with a white snapdragon. The resultant offspring gives pink progeny. 9. What are the genotypes of parents and offspring? 10. You have a pink snapdragon and a white snapdragon. You want to establish a stock of pure breeding red flowers. Outline a breeding program that will allow you to do this without buying more snapdragons.
a) In radishes, the plants can be tall (allele T) or dwarf (allele t). Tall is...
a) In radishes, the plants can be tall (allele T) or dwarf (allele t). Tall is dominant. Root color can be red (allele RR), white (allele RW), or pink (heterozygote). A radish that is true-breeding for both red roots and tallness (RRRR TT) is crossed with a radish that is true-breeding for both white roots and being dwarf (RWRW tt). Write the genotype and phenotype for the F1 generation. b) Assume the two genes for plant height and root color are...
0. In snapdragons, the alleles for flower color show incomplete dominance. CRCR produces red flowers; CWCW...
0. In snapdragons, the alleles for flower color show incomplete dominance. CRCR produces red flowers; CWCW produces white flowers and CRCW produces pink flowers. The height of the plant is determined by a separate gene with regular dominant and recessive alleles. Normal height (D) is dominant over dwarf height (d). a. A snapdragon that is heterozygous normal in height and has white flowers is crossed with a plant that is dwarf in height and has red flowers. What is the...
In snapdragons, when true-breeding red flowers are crossed with true-breeding white flowers, all the offspring exhibit...
In snapdragons, when true-breeding red flowers are crossed with true-breeding white flowers, all the offspring exhibit pink flowers. When true-breeding tall snapdragons are crossed with dwarf snapdragons, all the offspring are tall. A researcher decided to perform a dihybrid cross with the above characters and obtained all pink, tall snapdragons (F1). It was then decided to perform across with members of the F1 generation. What are the expected phenotypic ration for the F2 generation? (PLEASE INCLUDE LEGENDS, PUNNET SQUARES and...
DO THEM ALL AND BE CLEAR Question 11 pts When Mohan and Begum matted and had...
DO THEM ALL AND BE CLEAR Question 11 pts When Mohan and Begum matted and had cubs, all cubs were what coat color(s)? 3:1 orange to white 1:1 orange All orange coated 2:1 orange to white Flag this Question Question 21 pts One outcome of the blending model of inheritance would be that there would be no phenotypic variation left within a species over time Evolution would proceed more quickly only some traits could deb inherited only continuously variable traits...
two questions: 1) In one experiment, Mendel crossed a purple-flowered, tall plant that had come from...
two questions: 1) In one experiment, Mendel crossed a purple-flowered, tall plant that had come from a previous hybridization (i.e., it was not true breeding) with a white-flowered, dwarf plant. The results were as follows: • Purple flowers, tall 47 • White flowers, tall 40 • Purple flowers, dwarf 38 • White flowers, dwarf 41 What are the genotypes of both parent plants and all of the 4 classes of progeny? 2) Fur color in tribbles is determined by a...
(More Genetics Problems and Difficult Genetics Problems). MORE GENETICS PROBLEMS 1. When tall plants mate with...
(More Genetics Problems and Difficult Genetics Problems). MORE GENETICS PROBLEMS 1. When tall plants mate with dwarf plants, only tall plants occur in the offspring. Assign symbols and show the phenotypes and genotypes in the parental (P) and first filial generations for a cross between tall plants and dwarf plants that produces only tall plants. 2. Show the expected outcome when the F1 plants in problem #1 are crossed. Be sure to give both phenotype and genotype ratios for these...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered plants were crossed. What is the probability of each color appearing in the F2 generation? Red 2so Pink White A cross is made between a red flower and a pink flower (assume incomplete dominance). What is the probability of producing a white-flowered plant? 2b. EXTRA CREDIT In rabbits, the genotype BB produces a black coat color, but Bb produces a brown coat color. Rabbits...
0. In snapdragons, the alleles for flower color show incomplete dominance. CRCR produces red flowers; CWCW produces white flowers and CRCW produces pink flowers. The height of the plant is determined by a separate gene with regular dominant and recessive alleles. Normal height (D) is dominant over dwarf height (d). a. A snapdragon that is heterozygous normal in height and has white flowers is crossed with a plant that is dwarf in height and has red flowers. What is the...
(More Genetics Problems and Difficult Genetics Problems). MORE GENETICS PROBLEMS 1. When tall plants mate with dwarf plants, only tall plants occur in the offspring. Assign symbols and show the phenotypes and genotypes in the parental (P) and first filial generations for a cross between tall plants and dwarf plants that produces only tall plants. 2. Show the expected outcome when the F1 plants in problem #1 are crossed. Be sure to give both phenotype and genotype ratios for these...
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