Teeth issues

Isit normal for a 1 y.o not to grow any teeth yet? My girl is below underweight, but she's able to walk and all except her teeth haven't grow yet 😅 she's eaten a whole variety of food ranging and yet she still doesn't have teeth. My son who's 3 years older grew his tooth around 8 months. So abit worried that my girl hasn't had any teeth yet. 😅