A female dragon homozygous for tail spike mated with a male that was homozygous for no tail spike. What can be said of their offspring?

If a female dragon for tail spike is mated with a male dragon for no tail spike then all the offsprings will have tail spike as this is a dominant character in dragons. Female having tale spike is homozygous SS and male with no tail spike is also homozygous ss then the offsprings will be heterozygous Ss, Ss, Ss, Ss with tail spike.

There's a 50-50 chance that the offspring will have tail spikes and no tail spikes.