I. In garden peas, tall plants are dominant to short plants and smooth seeds are

Question

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? Punnett square AND 1 2 3 4 Offspring #0f offspring Offspring genotype with genotype phenotype What is the phenotypicratio? What proportion of the Tall plants with smooth seeds is heterozygous for both traits? II. What is the probability that the following pair of parents will produce the indicated offspring? TTRrGg x ttrrge-> TtRrGg Punnett squares for each individual trait can help you with this: Probability: (m) X (Rr) X (Gg)-

Explanation / Answer

Please find the answers below:

Answer 1: According to the information, a cross is made between TtRr and TtRr. Thus, the answers can be found as below:

Part 1: Genotype of parents: TtRr and TtRr

Part 2: Gametes for each parent: TR, Tr, tR, tr and TR, Tr, tR, tr.

Part 3: The Punnett square can be designed as below:

Thus,

Offspring genotype: TTRR: TTRr: TtRR: ttRR: TTrr: Ttrr: TTRr: TtRr: ttrr :: 1: 2: 2:1: 1:1:1:1:1

Phenotpye: Tall-round: tall-wrinkled:dwarf-round:dward wrinkled :: 9:3:3:1

Part 4: Proportion of tall-round plants having heterozygous genotype i.e. TtRr = 4/16 or1/4 or 25%.

TR Tr tR tr TR TTRR TTRr TtRR TtRr Tr TTRr TTrr TtRr Ttrr tR TtRR TtRr ttRR ttRr tr TtRr Ttrr ttRr ttrr

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---