A) male Drosophila fly
B) female Drosophila fly
C) female bird
D) Both (a) and (c)
Correct Answer: D
Solution :
The organisms, which produce two kind of gametes are termed as heterogametic organisms. Male heterogamety is found in certain insects (Drosophila) and human being. Female heterogamety is has been found in butterflies moth and vertebrates like fish reptiles and birds. Male heterogamety (XX-XY type) female heterogamety (ZZ - ZW type).
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