Concept explainers
Reciprocal crosses of experimental animals or plants sometimes give different results in the
To analyze:
Reciprocal crosses of trial animals or plants, sometime give dissimilar results in
Introduction:
The reciprocal cross is a duo of crosses between a male of one strain and a female of other and vice versa. It is used to investigate the role of parental sex on a given inheritance pattern. It is used to identify whether the allele is present on an autosome or on the sex-chromosome.
Explanation of Solution
In the reciprocal cross, the parental genotype is reversed to test the role of the paternal sex on the inheritance pattern. If the F
The other than autosome allele can either be inherited from the sex chromosome or by parental inheritance. In parental inheritance, two possible explanations for the change in result would be-
Homoplasmy - homoplastic cells have organelles with the same genotype.
Heteroplasmy - Heteroplasmic cells contain a mixture of the allele.
The reciprocal cross shows a different result in F
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Chapter 19 Solutions
GENETIC ANALYSIS: AN INTEG. APP. W/MAS
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