olor and short tail? pring having black coat color and long tail? What about brown ed Color and Beed Shape in Pea Plante In pea plants, seed color and seed shape are controlled by two separate genes. Seed color termined by the Y gene, where Y represents the dominant allele for yellow seeds, and y sents the recessive allele for green seeds. Seed shape is controlled by the 3 gene, where s sents the dominant allele for smooth seeds, and a represents the recessive allele for wrinkled Parent I is homozygous dominant for seed color (YY) and heterozygous for seed shape (Sa) cing yellow smooth seeds. Parent 2 is heterozygous for seed color (y) and homozygous sive for seed shape (ss), yielding green wrinkled seeds. What are the possible gametes produced by each parent? - Use a Punnett square to determine the genotypic and phenotypic ratios of the offspring. What is the probability of the offspring having yellow smooth seeds? What about gre wrinkled seeds? nce 8 Quarter 1[tex]and \: solution[/tex]
Answer (1)
In a pea plant cross, where one parent is YYSs (yellow, smooth) and the other is yySs (green, wrinkled), the possible gametes are YS, Ys, yS, and ys from both parents. A Punnett square reveals a genotypic ratio of 1:1:1:1 for YySs:Yyss:yySs:yyss, and a phenotypic ratio of 1:1:1:1 for yellow smooth:yellow wrinkled:green smooth:green wrinkled. The probability of yellow smooth offspring is 1/4, and the probability of green wrinkled offspring is 1/4.
