Please answer and explain the Offspring genotype, the # of offspring with genoty
ID: 273953 • Letter: P
Question
Please answer and explain the Offspring genotype, the # of offspring with genotype and offspring phenotype as well as answer the question of what proportion of the Tall plants with smooth seeds is heterozygous for both traits.
Essentially, please fill in the blanks and explain so I understand. Thank you.
I. In garden peas, tall plants are dominant to short plants and smooth seeds are dominant over wrinkled seeds. If two heterozygous tall plants with smooth seeds (TtRr) are crossed, what are the potential genotypes and phenotypes that can be expected in the offspring? what is the genotype of the parents? !( ? ??????????? ? what are the gametes for each parent?__Explanation / Answer
Genotype of parents - TtRr.
Cross TtRr X TtRr
Gametes formed TR, Tr, tR and tr TR, Tr, tR and tr.
Next generation:
Offspring phenotypes:
Tall plants with smooth seeds = 9.
Tall plants with wrinkled seeds = 3.
Smooth plants with smooth seeds = 3.
Short plants with wrinkled seeds = 1.
The phenotypic ratio = 9:3:3:1.
The proportion of the Tall plants with smooth seeds is heterozygous for both traits = 4/16 = 1/4 = 25%.
Male/Female TR Tr tR tr TR TTRR(Tall plants with smooth seeds) TTRr(Tall plants with smooth seeds) TtRR(Tall plants with smooth seeds) TtRr(Tall plants with smooth seeds) Tr TTRr(Tall plants with smooth seeds) TTrr(Tall plants with wrinkled seeds) TtRr(Tall plants with smooth seeds) Ttrr(Tall plants with wrinkled seeds) tR TtRR(Tall plants with smooth seeds) TtRr(Tall plants with smooth seeds) ttRR(Short plants with smooth seeds) ttRr(Short plants with smooth seeds) tr TtRr(Tall plants with smooth seeds) Ttrr(Tall plants with wrinkled seeds) ttRr(Short plants with smooth seeds) ttrr(Short plants with wrinkled seeds)