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Chapter 14 - Biology Exam

Question:

Tallness (T) in snapdragons is dominant to dwarfness (t), while red (R) flower color is dominant to white (r). The heterozygous condition results in pink (Rr) flower color. A dwarf, red snapdragon is crossed with a plant homozygous for tallness and white flowers. What are the genotype and phenotype of the F1individuals?


A)ttRr–dwarf and pink


B)ttrr–dwarf and white


C)TtRr–tall and red


D)TtRr–tall and pink


E)TTRR–tall and red


Answer:

D)TtRr–tall and pink



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Last update by mayur on 03/27/2014
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Chapter 14   Biology Exam
Chapter 14 - Biology Exam
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Question: Tallness (T) in snapdragons is dominant to dwarfness (t), while red (R) flower color is dominant to white (r). The heterozygous condition results in pink (Rr) flower color. A dwarf, red snapdragon is crossed with a plant homozygous for tallness and white flowers. What are the genotype and phenotype of the F1individuals? A)ttRr–dwarf and pink B)ttrr–dwarf and white C)TtRr–tall and red D)TtRr–tall and pink E)TTRR–tall and red
Answer: D)TtRr–tall and pink