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In ZZ/ZW system if there is a recessive Z allele carrying a distinct phenotype, it will have greater probability of expression in ____________(a) Male(b) Female(c) Recessive genes will not be expressed(d) Both genders equallyI had been asked this question by my school teacher while I was bunking the class.This intriguing question originated from Other Methods of Sex Determination topic in division Chromosomes and Sex Determination of Cytogenetics

Answer»

The CORRECT option is (b) Female

To explain I would say: Females being heterozygous will lack the compensating functional copy from other Z chromosomes will EXPRESS it with greater probability. This is SIMILAR to the fact that X linked recessive DISORDER in mammals is expressed more in males.



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