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Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation1 Mark
MCQ
Test cross cannot be performed in:
  • A
    Neurospora
  • B
    Mangifera indica
  • C
    Pisum sativum 
  • D
    Rosa 
✓

Answer

  1. Neurospora

Explanation:

A test cross is performed to determine the genotype of the dominant individual if it is heterozygous or homozygous.

Neurospora is a haploid fungus wherein the recessive allele can express itself and no need to perform a test cross to determine the presence of recessive alleles.

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