Well since she was impersonating a female and her robot form looked very feminine means it would be best to assume that she was a female.
But there are some other female Transformers, but it's only restricted to Arcee and the two other motorcycle Autobots she was with in her two brief scenes who are most likely female. But from what I've read, the reason Michael baie didn't put many female Transformers in the films was because he was finding it too difficult to explain how there was male and female robots. Because of this Arcee was dropped from the main cast in the first film and replaced with Ironhide.
But if toi look at other Transformers continuties and the frachise as a whole toi can find quite a few female Transformers. Even though compared to the males they're still a minority and there are plus female Autobots than female Decepticons.
There is no female Deceptecon.Well,There is a female autobot.They have 2.They have Arcee who is a rose motorcycle and Chromia is a dark blue motorcycle.They are both in ROTF.Acree is Optimus Prime's girlfriend and Chromia is Ironhide's girlfriend.True.
toi forgot the freakin hot Arcee from TF Prime, and there's ARCEE and CHROMIA and ELITA-ONE in Revenge of the Fallen and in G1!!! Don't forget Blackarachnia from Beast Wars/ Animated and Airachnid in TF Prime.
There was Alice, the Decepticon who was disguised as a human female, in ROTF. Also, in ROTF, there were the three sisters- Arcee, Elita-One, and Chromia. Arcee was the rose motorcycle, Elita-One was the purple morotcycle, and Chromia was the blue motorcycle. They are seen in Shanghai chasing after Sideways, who is later cut in half par Sideswipe. Later in the movie, at Cairo, the sisters are seen trying to rescue Sam and Mikaela with Ironhide, but are killed par a Decepticon ambush. Those are the only female Transformer appearances in the movies.
Actually yes their are female autobot in generation one and in animated their was a female decepticon named slipstream a clone of starscream i think their was also a female autobot in fallen arcee but decepticon i really dont know