A) ZO-ZZ
B) XY-XX
C) XX-XO
D) ZW-ZZ
Correct Answer: A
Solution :
[a] ZO and ZZ type of sex-determination mechanism occurs in certain butterflies and moths. The female is heterogametic and produces two types of eggs, half with Z and half without Z-chromosome. The males are homogametic and forms only one kind of sperms, each with Z-chromosome.You need to login to perform this action.
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