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प्रश्न
What is a test cross?
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उत्तर
- The cross between the F1 hybrid and the recessive parent is called the test cross.
- The crossing of an F11 progeny with a double (homozygous) recessive parental progeny is done in order to determine whether the progeny is homozygous or heterozygous for a character under consideration. This is called a test cross.
संबंधित प्रश्न
Design a test-cross.
Explain the significance of a test cross.
Explain the statement of
Test cross is back cross but back cross is not necessarily a test cross.
In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of the black seed plant, with which of the following genotype will you cross it?
Statement I - Back cross is the crossing of F1 - hybrid with one of the two parents from which they were derived.
Statement II - Test cross involves the crossing of F1 - hybrid with its homozygous recessive parent.
In light of above statements, choose the correct answer from the option given below.
What is the primary purpose of performing a test cross in genetics?
In a test cross, which parent must always be used alongside the dominant phenotype individual?
What phenotypic ratio in test cross offspring indicates that the dominant parent is heterozygous (Tt)?
In a back cross between F₁ (Tt) and the homozygous recessive parent (tt), what phenotypic ratio is observed?
What is the primary practical application of test crosses in agriculture?
