Asingle strand of dna contains the following nine nucleotides in this order:
act tat gga.

what sequence of bases will be present on the complementary strand of dna?

The question is asking to state the sequence of bases that will be present on the complementary strand of DNA and in my calculation ad further understanding, I would say that the answer would be TGA ATA CCT, A with T, G with C. I hope you are satisfied with my answer and feel free to ask for more 

Since a female is both xx chromosome and the male passes down the x chromosome, than the offspring would be female since a female is xx.