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In birds, males are ZZ and females are ZW. The recessive lethal allele which causes death of embryo is sometimes present on Z chromosome in pigeons. This locus is hemizygous in females (ZW). What would be the sex ratio in offspring of a cross between a male which is heterozygous for the lethal allele and normal female?

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  • Category:- Biology
  • Reference No.:- M915153

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