12th Class Biology Sample Paper Biology - Sample Paper-4

  • question_answer
    Differentiate between test cross and backcrosa.

    Answer:

    Test cross : Cross between \[{{F}_{1}}\] and recessive parent/to determine genotype of \[{{F}_{1}}\]
    Back cross: Cross between \[{{F}_{1}}\] and any of dominant phenotype parent/need not be a test cross/ to establish. It is used in crop/homozygosity improvement.
     


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