1. Tardigrade
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  4. Assertion: At F2 stage in monohybrid cross, both parental traits are expressed in the proportion of 3:1. Reason: The contrasting parental traits show blending at F2 stage.

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Q. Assertion : At $F_2$ stage in monohybrid cross, both parental traits are expressed in the proportion of $3:1$.
Reason : The contrasting parental traits show blending at $F_2$ stage.

Principles of Inheritance and Variation

Solution:

In $F_2$ generation both the parental traits of a character are expressed in the ratio of three dominant to one recessive.