Which cross will produce offspring with a genotypic ratio of 1:2:1?

Which cross will produce offspring with a genotypic ratio of 1:2:1?

13:25
I. TT x tt
II. Tt x tt
III. Tt x tt
IV. tt x tt

Which cross will produce offspring with a genotypic ratio of 1:2:1?




a. I only
b. II only
c. III only
d. IV only
E. II and III


Answer: c. III only


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