What is the Difference Between Reciprocal Cross and Test Cross?
🆚 Go to Comparative Table 🆚The main difference between a reciprocal cross and a test cross lies in their purpose and the type of information they provide in genetics:
- Reciprocal Cross: This type of cross is designed to test the role of parental sex on a given inheritance pattern. It involves crossing a pair of parents with the sexes reversed, resulting in obtaining two reciprocal crosses. The reciprocal cross helps determine sex-linked inheritance, or whether the trait depends on the parent's sex.
- Test Cross: The test cross involves mating a dominant phenotype with a recessive phenotype. It is used to determine zygosity, or whether the trait is heterozygous or homozygous. Zygosity is the degree of similarity that defines a specific trait between two alleles. The test cross can differentiate between homozygous dominant and heterozygous genotypes.
In summary, a reciprocal cross is used to study the role of parental sex in inheritance patterns, while a test cross is used to determine zygosity and differentiate between homozygous and heterozygous genotypes.
On this pageWhat is the Difference Between Reciprocal Cross and Test Cross? Comparative Table: Reciprocal Cross vs Test Cross
Comparative Table: Reciprocal Cross vs Test Cross
The main difference between a reciprocal cross and a test cross is their purpose in genetic studies. Here is a comparison table highlighting the key differences between the two:
| Feature | Reciprocal Cross | Test Cross |
|---|---|---|
| Purpose | Determines the role of parental sex in the inheritance of a trait, i.e., if a trait is sex-linked or not. | Determines the zygosity of the parent, i.e., whether the trait is heterozygous or homozygous. |
| Procedure | Involves crossing an individual with a dominant phenotype and an individual with a recessive phenotype, and then crossing the reciprocal individuals. | Involves crossing an individual with an unknown dominant phenotype and a homozygous recessive organism for that trait. |
| Outcome | Provides information about whether the trait depends on the parent's sex. | Provides information about whether the parent is homozygous or heterozygous for the trait. |
Both reciprocal cross and test cross are types of genetic crosses used in breeding experiments to study inheritance patterns and trait distribution in offspring.
Read more:
- Monohybrid Cross vs Reciprocal Cross
- Test Cross vs Backcross
- Recombination vs Crossing Over
- Self vs Cross Fertilization
- Hybridization vs Cross Breeding
- Reciprocal vs Nonreciprocal Translocation
- Monohybrid vs Dihybrid Crosses
- Robertsonian vs Reciprocal Translocation
- Crossover Frequency vs Recombination Frequency
- Linkage vs Crossing Over
- Inverse vs Reciprocal
- Complementation vs Recombination
- Translocation vs Crossing Over
- Linkage vs Recombination
- Crossbreeding vs GM
- Reciprocal Altruism vs Kin Selection
- Homologous Recombination vs Non-homologous Recombination
- Gene Conversion vs Crossover
- Synapsis vs Crossing Over