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प्रश्न
Explain the significance of a test cross.
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उत्तर
- It helps to determine whether individuals exhibiting dominant character are genotypically homozygous or heterozygous.
- The purity of the parents can be determined.
- It helps to determine the genotype of the individual.
- It has wide application in plant breeding experiments.
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संबंधित प्रश्न
Design a test-cross.
Define the following term:
Dihybrid cross
Long answer type question.
Define test cross and explain its significance.
In order to achieve a dihybrid test cross, the F1 hybrid YyRr should be crossed will which one of the following genotypes?
A purple flowered pea plant is crossed with a white flowered pea plant. Among the progeny, there are equal number of purple and white flowered plants. The result indicates that it is ______.
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?
When a test cross produces all offspring with the dominant phenotype, what can be concluded about the dominant parent's genotype?
What is the expected genotypic ratio when an F₁ heterozygous individual (Tt) is back crossed with the homozygous dominant parent (TT)?
What is the primary practical application of test crosses in agriculture?
