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Principles of Inheritance and Variation question

2006 · Q64
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Principles of Inheritance and Variation question

2006 · Q64

NEETBiologyPrinciples of Inheritance and VariationMCQ+4 / −1
Test cross involves-
  1. A
    Crossing between two F1 hybrids
  2. B
    Crossing the F1 hybrid with a double recessive genotype
  3. C
    Crossing between two genotypes with recessive trait
  4. D
    Crossing between two genotypes with dominant trait
View written solutionFree

Correct answer: B

A cross of F1 hybrid with its recessive homozygous parent is called the test cross. It is done to determine the genotype of a given plant. If the given plant has homozygous dominant traits then on test cross it gives all dominant trait plants but if it is heterozygous dominant than it gives dominant and recessive phenotypes in 1 : 1 ratio.

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