valeriedeleon0p58coj valeriedeleon0p58coj

22-03-2018
Biology

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You perform a testcross on a tall pea plant. Half the offspring are short. What conclusion can you draw from this outcome?
A) A change in the gene's DNA changed the form of the trait.
B) The tall pea plant was crossed with a heterozygous plant
C) The genotype of the tall pea plant is homozygous
D) The genotype of the tall pea plant is heterozygous

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shivjimishraVT shivjimishraVT

19-07-2022

The conclusion that you can draw from this outcome is the genotype of the tall pea plant is heterozygous. Thus, the correct option is D.

What is a Test cross?

A test cross may be defined as the process in which the organism with an unknown dominant genotype is crossed with the recessive parent.

In this question, the parental combinations are TT × tt. The F1 generation has the genotype Tt. Now, this heterozygous tall plant is crossed with the recessive parent (tt), and the resultant offspring have the genotypes Tt, tt, Tt, and tt. Among which half of the offspring are short.

Therefore, the correct option is D.

To learn more about Test cross, refer to the link:

https://brainly.com/question/12034923

#SPJ2

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