"Benim kız kardeşim yok." Translation: I do not have sisters.
Why use a (singular) question with a (plural) answer?
kardeşim - (singular)
kardeşlerim - (plural)
"Benim kız kardeşim yok." Translation: I do not have a sister.
Bunlar benim kardeşlerim - these are my siblings.
I think "Benim kız kardeşim yok" is saying "I do not have younger sisters" It could be that I have an elder sister so. Am I right? If somebody asks me "Senin kız kardeşin var mi? what would I have to answer? Is the meaning of this question general, I mean "Do you have any sister" or is the meaning really "Do you haver younger sisters". Please can anybody clarify this for me.