F2 Cross: Tall, White, Axial x Dwarf, Violet, Terminal DdwwAA x ddWWaa Character: Stem height, Flower color & position Use fork-line method to check the possible offspring. Show and interpret all the possible genotypes and phenotypes of the offsprings.
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- TOPIC: GENE INTERACTION AND EPISTASIS Two pure-breeding (homozygous) lines of shrubs were crossed as follows: P1 phenotype red leaves X green leaves P1 genotype ___________ _____________ F1 phenotype 100% green leaves with white flecks F1 genotype ___________ Crossing the F1s produced: F2 phenotypes F2 genotypes 123 green leaves w/ white flecks ____ 44 green leaves ____ 63 red leaves ____Trace the offspring of orchid flower up to second generation. Given: P-violet У - yellow Parent: PPX yy G- F1- P- G - F2- 1. A BI 三 三三 III !!Given : The given plant is triploid. Symbol For purple = P For yellow seed = Y For round seed = R Answer 1. The Probability of PpYyRr = 8/64 = 1/8 2. The Probability of PPyyRr = 4/64 = 1/16 3. Probability of at least exhibiting wrinkled seeds = 32/64 = 1/2 4. Probability of at least exhibiting purple flowers = 48/64 = 6/8 = 3/4 QUESTION: Answer the remaining question (5, 6, 7)
- If purple flower is dominant over red flower, what is the genotype of the dominant characteristic? show your solution using punnet squareyellow normal-54 yellow opaque-19 white normal- 15 white opaque-8 1. Diagram the hybrid cross showing the segregation of genes responsible for endosperm type andendosperm color in corn. Indicate all applicable gene relationships. Indicate the genotypes,phenotypes and gametes of individuals involved in all crosses. Derive the genotypic and phenotypicratios of the F2 generation using the branching method. 2. Interpret the result of your Chi-squared test.1. How many gene pairs wereresponsible for endosperm type andendosperm color in corn?2. What gene interaction was presentin the genes for the said traits?3. What are the dominant phenotypesfor each trait?4. What are the recessive phenotypesfor each trait?5. Are the genes independentlysegregating?6. What are the possible genotypes ofthe P1 and P2 that produced this F2population?7. Indicate your gene notation 3. Give the possible genotypes of each of the observed phenotypes in your sample. Determine thepossible genotypes of the parents of…Purple Stem A All seedlings are 72 hours old. Standard Height R seed coat Green Stem a Non-Purple Stem Standard Purple Stem Standard (ANLIANL, ROS/ROS) Purple Stem Rosette-Dwarf Non-Purple Stem Rosette-Dwarf Dwarf Height r (anl/anl, ROS/ROS) (ANLIANL, ros/ros) (anl/anl, ros/ros) Cross a hybrid purple stem standard (both traits are heterozygous) with a hybrid purple dwarf (ie: purple is heterozygous and dwarf height is recessive). What are the parental genotypes? What % is each phenotype in the offspring?
- Topic: Trihybrid Cross, Height in merigonias is determined by three unlinked genes that act additively. Each has two alleles, one compltely dominant allele(A,B or C) that makes plants taller and one recessive allele that makes plants shorter. Do the corss AaBbCc X AaBbCc. The fraction of The F1 progenty will be ? Pls explain it with more details. thanksPurple Stem A All seedlings are 72 hours old. Standard Height R seed coat Green Stem a Purple Stem Standard Non-Purple Stem Standard (anl/anl, ROS/ROS) Purple Stem Rosette-Dwarf Non-Purple Stem Rosette-Dwarf Dwarf Height r (ANLIANL, ROS/ROS) (ANLIANL, ros/ros) (anl/anl, ros/ros) Cross a heterozygous (for color only!) purple stem standard (homozygous for height) with a green stem dwarf. What are the parental genotypes? What % is each phenotype in the offspring?Please explain floral morphology of cotton. Also write down procedure of selfing and crossing as you have done it.
- Topic: Trihybrid Cross, Height in merigonias is determined by three unlinked genes that act additively. Each has two alleles, one compltely dominant allele(A,B or C) that makes plants taller and one recessive allele that makes plants shorter. Do the corss AaBbCc X AaBbCc. The F1 progenty: 27/64 will be as tall as the parents; 37/64 will be shorter than the parents. Pls explain it with more details. thanksPlease write your complete solution (paper). What color of gumamela flower should be crossed to produce all pink flowers?TOPIC: GENE INTERACTION AND EPISTASIS In pineapples, leaves may be spiny, spiny-tipped or piping. Pineapples of different phenotypes were used in the following crosses: P1 phenotype piping X spiny P1 genotype ______ ______ F1 phenotype 100% piping F1 genotype ______ Crossing the F1s produced: F2 phenotypes F2 genotypes 95 piping _______ 25 spiny tipped _______ 8 spiny _______