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Question

A test cross is carried out to
  1. Predict whether two traits are linked
  2. Determine the genotype of a plant at F2
  3. Determine whether two species or varieties breed successfully
  4. Assess the number of alleles of a gene

A
Determine the genotype of a plant at F2
B
Predict whether two traits are linked
C
Assess the number of alleles of a gene
D
Determine whether two species or varieties breed successfully
Solution
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Mendel devised a system of conducting a verification of the results obtained by him. It is known as test cross. It is a cross between F1 plant and the recessive parent. A test cross conducted for the monohybrid inheritance results in the two opposite characters expressing in a ratio of 1:1. Test cross can be used to determine the genotype of the F1 plant. The test cross can be used to support the idea that the reappearance of the recessive character in the F2 generation is due to the heterozygous condition of the F1 plant. The test can be used to verify whether any given pair of characters can be alleles (contrasting characters).
Thus, the correct answer is option A.

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Similar Questions
Q1
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Q2
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Crossing between two different species or varieties of a plant to get plants with improved qualities is called as ____ .


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