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Long answer type question. Define test cross and explain its significance. - Biology

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Short Note

Long answer type question.

Define test cross and explain its significance.

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Solution

Definition:

The cross between F1 hybrid and its homozygous recessive parent is called a test cross.

Significance of test cross:

  1. It helps to determine whether individuals exhibiting dominant character are genotypically homozygous or heterozygous.
  2. It has wide application in plant breeding experiments.
  3. In rapid crop improvement programmes, test cross is used to introduce a useful recessive trait in the hybrids.
Concept: Back Cross and Test Cross
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Balbharati Biology 12th Standard HSC for Maharashtra State Board
Chapter 3 Inheritance and Variation
Exercises | Q 5.3 | Page 69
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