Dihybrid Cross Problems - Fort Bend ISD / Homepage
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Dihybrid Cross Problems Dihybrid Cross Problems A.) List the genotype of each parent described B.) Use a Punnett square to predict the possible outcomes of a cross between the 2 parents. C.) List the phenotypes and the number of that phenotype present in the offspring for each cross (can write as a ratio). Symbols (for pea plant traits): T: tall t: short Y: yellow seeds y: green seeds R: round seeds P: purple flower r: wrinkled seeds p: white flower Problems: 1.) Cross a heterozygous tall and round seed pea plant with another heterozygous tall, round seed plant. A.) List the genotype of each parent described B.) Use a Punnett square to predict the possible outcomes of a cross between the 2 parents. C.) List the phenotypes and the number of that phenotype present in the offspring for each cross (can write as a ratio). Symbols (for pea plant traits): T: tall t: short Y: yellow seeds y: green seeds R: round seeds P: purple flower r: wrinkled seeds p: white flower Problems: 1.) Cross a heterozygous tall and round seed pea plant with another heterozygous tall, round seed plant. 2.) Cross a pea plant that is heterozygous for purple flowers and homozygous dominant for yellow seeds with a plant that is heterozygous for purple flowers and homozygous recessive for green seeds. 2.) Cross a pea plant that is heterozygous for purple flowers and homozygous dominant for yellow seeds with a plant that is heterozygous for purple flowers and homozygous recessive for green seeds. 3.) Cross a plant that is heterozygous for round seeds and homozygous recessive for white flowers with a plant that is homozygous recessive for wrinkled seeds and heterozygous for purple flowers. 3.) Cross a plant that is heterozygous for round seeds and homozygous recessive for white flowers with a plant that is homozygous recessive for wrinkled seeds and heterozygous for purple flowers. 4.) Cross a plant that is heterozygous tall and homozygous for green seeds with a plant that is short and is also homozygous for green seeds. 4.) Cross a plant that is heterozygous tall and homozygous for green seeds with a plant that is short and is also homozygous for green seeds. Dihybrid Cross Problems Dihybrid Cross Problems A.) List the genotype of each parent described B.) Use a Punnett square to predict the possible outcomes of a cross between the 2 parents. C.) List the phenotypes and the number of that phenotype present in the offspring for each cross (can write as a ratio). Symbols (for pea plant traits): T: tall t: short Y: yellow seeds y: green seeds R: round seeds P: purple flower r: wrinkled seeds p: white flower Problems: 1.) Cross a heterozygous tall and round seed pea plant with another heterozygous tall, round seed plant. A.) List the genotype of each parent described B.) Use a Punnett square to predict the possible outcomes of a cross between the 2 parents. C.) List the phenotypes and the number of that phenotype present in the offspring for each cross (can write as a ratio). Symbols (for pea plant traits): T: tall t: short Y: yellow seeds y: green seeds R: round seeds P: purple flower r: wrinkled seeds p: white flower Problems: 1.) Cross a heterozygous tall and round seed pea plant with another heterozygous tall, round seed plant. 2.) Cross a pea plant that is heterozygous for purple flowers and homozygous dominant for yellow seeds with a plant that is heterozygous for purple flowers and homozygous recessive for green seeds. 2.) Cross a pea plant that is heterozygous for purple flowers and homozygous dominant for yellow seeds with a plant that is heterozygous for purple flowers and homozygous recessive for green seeds. 3.) Cross a plant that is heterozygous for round seeds and homozygous recessive for white flowers with a plant that is homozygous recessive for wrinkled seeds and heterozygous for purple flowers. 3.) Cross a plant that is heterozygous for round seeds and homozygous recessive for white flowers with a plant that is homozygous recessive for wrinkled seeds and heterozygous for purple flowers. 4.) Cross a plant that is heterozygous tall and homozygous for green seeds with a plant that is short and is also homozygous for green seeds. 4.) Cross a plant that is heterozygous tall and homozygous for green seeds with a plant that is short and is also homozygous for green seeds.
