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The gene for lengths of stem in a garden pea plant results in either tall or short stems, with tall being the dominant trait. Pretend you are a geneticist and, for the purpose of an investigation, you would like to determine if a tall pea plant is homozygous dominant or heterozygous.
Explain your reasoning using Punnett squares. Be sure to give the expected results of each Punnett Square you draw.
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- Height among red stalk plants is divided into tall, medium and short. From tests, scientists know it is governed by two alleles of the same gene. It is known that tall plants and short plants are homozygous. What is the genotype of the medium plant? Explain your reasoning in one to two sentences. A cross between a medium plant and a tall plant occurs. What would be the genotypes? Show your work/explain your reasoning. Can medium plants be true breeding (i.e. be bred with other medium plants to ALWAYS produce medium plants)? Explain your reasoning. étv MacBook Pro %23 $ & * 3 4 5 7 8. T Y D F H. JA pea plant is heterozygous for both pod shape and color. I is the allele for dominant, inflated pod; i is the allele for recessive, constricted pod. G is the allele for dominant, green pod; g is the allele for recessive, yellow color characteristic. Suppose this plant is crossed with a homozygous pea with inflated, green pod, what will be the possible genotype of the offspring? Construct the punnet square, then identify the following: 1. Parents’ genes?2. Parents’ traits?3. Genes (genotype)?4. Shape, color? (phenotype)?5. Genotypic ratio?6. Phenotypic ratio?Use the following information to answer the next question. A Venn Diagram Showing the Relationship Between Oogenesis and Spermatogeneis. Oogenesis 1 NOTE: Similarities are represented by area 2. Differences are represented by areas 1 or 3. Match the numbered regions with the descriptions below. Spermatogenesis 3 Four viable gametes produced: Occurs in gonads: Daughter cells equal in size Unequal cytoplasmic division ▶
- For the following problem: Identify the gametes for each parent, build a Punnett Square of the probability of offspring. Show the resulting genotype ratios and the resulting phenotype ratios. The submission file on Canvas will typically have a multiple-choice component or may be a fill-in-the-blank question related to genotype and/or phenotype outcomes. Be prepared to address all of these details in the questions. A plant breeder is working on producing a new color for geranium blossoms and has success in producing orange blooms from a combination of typical red (dominant) and white (recessive) colors. To verify the success of this phenotype he combines a true-breeding red geranium with a true-breeding white and the F1 generation is all orange. He collects more data by combining an individual from this F1 orange phenotype with another true-breeding white but then discovers that the F2 generation is only half orange, with the other half white.What should he conclude about the…If Dominant Tall ( TT ) plant with Axial Flowers ( AA ) is crossed with recessive ( tt ) plant containing terminal flowers ( aa ) following Mendelian Genetics . What will be genotypes and phenotypes in F2 generation ? Write numbers of genotypes .and phenotypes also . Use the same symbols .A pea plant is heterozygous for both pod shape and color. I is the allele for dominant, inflated pod; i is the allele for recessive, constricted pod. G is the allele for dominant, green pod; g is the allele for recessive, yellow color characteristic. Suppose this plant is crossed with a homozygous pea with inflated, green pod, what will be the possible genotype of the offspring? Identify the: Parents’ genes?Parents’ traits?Genes (genotype)?Shape, color? (phenotype)?Genotypic ratio?Phenotypic ratio?
- Shown in the pictures below are the degrees of dominance in the inheritance of flower color in some plants. *Based on the phenotypes (or maybe genotype), differentiate between complete dominance, incomplete dominance, and codominance. Be able to discuss the difference briefly but concisely. You may also refer to the definition.A man with red hair (hh) reproduces with a heterozygotic woman (Hh). Does the woman have red hair? What about their children? Create a Punnett square and determine the ratio or percentage of their offspring that have red hair. As stated in the discussion of independent assortment and dihybrids above, pea color and coat texture are independent traits in pea plants. Yellow (G) is dominant over green (g) and smooth (W) is dominant over wrinkled (w). What would the phenotypic ratios of the offspring of parents with genotypes GGww and ggwW? Show your work with a Punnett square. Review the information on Labrador retrievers above. What are the phenotypic ratios of the F1 generation offspring of two dihybrids? Make sure to match the numbers with coat colors (e.g, which number in the ration goes with which color). Use a Punnett square to determine the ratios and show your work. Make sure to state the phenotypic ratios. Finally, what color are the parents? Two other Labradors mate and…In a species of flowers, blue petals are dominant over purple petals, and a long stem is dominant over a short one. Cross a flower that is heterozygous for both traits with a flower that is homozygous recessive for petal color and homozygous dominant for stem length. Report the genotype and phenotype. *Write your answers in ratio non-reduced form (Example 16:8) Genotype Phenotype
- SEATWORK Symbols (for pea plant traits): • T: Tall t: short Analyze the following problems. Determine the possible genotypes, genotypic ratio, phenotypes, and phenotypic ratio from the genetic cross. Show your solution through a Punnett square. Use the symbols provided. • R: Round seeds r: wrinkled seeds • Y: Yellow seeds y: green seeds • P: Purple flower p: white flower 1) Cross a homozygous dominant tall and homozygous round seed pea plant with a heterozygous tall and heterozygous round seed pea plant. 2) Cross a pea plant that is heterozygous for purple flowers and homozygous dominant for yellow seeds with a pea plant that is heterozygous for purple flowers and homozygous recessive for green seeds. 3) Cross a pea plant that is short and has green seeds with a pea plant that is heterozygous tall and has heterozygous yellow seeds.Using Mendel’s lines of peas, describe how you would use a test cross experimental design to determine the genotype of a pea plant with purple flowers. Be very specific in describing your experimental design and how you would interpret your results based on the proportion of offspring phenotypes. Make sure to include all possible offspring phenotypes in your answer and what the proportion of phenotypes tells you about the purple plant genotype.If Purple (P) flowers is dominant over white (p) flowers, and tall (T) pea plants are dominant over short (t) pea plants, a cross between a heterozygous tall, heterozygous purple flowering plant with a heterozygous tall, white flowering plant would produce what fraction of homozygous Tall homozygous white flowering plants?