1.

Wich the help of a flow chart,explain sex-determination in birds​

Answer»

tion: The sex chromosomes in birds are DESIGNATED Z and W, and the male is the homomorphic sex (ZZ) and the FEMALE heteromorphic (ZW). ... The weight of evidence suggests that sex DETERMINATION in birds is by a genic balance MECHANISM, in which the ratio of autosomes to Z chromosomes is the crucial factor.



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