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can u give the general definition of test cross?? ​ ​ ​

can u give the general
definition of test cross??

Grade:12

3 Answers

Simran Vinaik
askIITians Faculty 1231 Points
2 years ago
A test cross is a way to explore the genotype of an organism.
The organism in question is crossed with an organism that is homozygous for the recessive trait, and the offspring of the test cross are examined. If the test cross results in any recessive offspring, then the parent organism is heterozygous for the allele in question. If the test cross results in only phenotypically dominant offspring, then the parent organism is homozygous dominant for the allele in question.
Simran Vinaik
askIITians Faculty 1231 Points
2 years ago
The organism in question is crossed with an organism that is homozygous for the recessive trait, and the offspring of the test cross are examined. If the test cross results in any recessive offspring, then the parent organism is heterozygous for the allele in question. If the test cross results in only phenotypically dominant offspring, then the parent organism is homozygous dominant for the allele in question.
Arun
25763 Points
2 years ago
In genetics, a test cross, first introduced by Gregor Mendel, involves the breeding of an individual with a phenotypically recessive individual, in order to determine the zygosity of the former by analyzing proportions of offspring phenotypes. Zygosity can either be heterozygous or homozygous.

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