The cross used to determine the genotype is called:
Correct answer: B. Test cross
- A. Monohybrid cross
- B. Test cross
- C. Dihybrid cross
- D. Reciprocal cross
Explanation
The test cross is another fundamental tool devised by Gregor Mendel. In its simplest form, a test cross is an experimental cross of an individual organism of dominant phenotype but unknown genotype and an organism with a homozygous recessive genotype (and phenotype).
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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Punnett square gives Rr in F2 as:
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Match particulate hereditary factor of Mendel with one of the followings:
If test cross gives all dominant characters it means the parent is:
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In test cross if the parent whose genotypes is to be determined is heterozygous then it gives: