Question

Which of the following genotypes is homozygous recessive?

A.) ss
B.) Bb
C.) TT
D.) XY

Answer 1

I believe the correct answer is A. ss. ss is homozygous recessive.

Answer 2

The nomenclature of genetics are :
Two small (lowercase) letters are always homozygous recessive 
Homozygous means two of the same 
Recessive refers to a lower case letter. 

Thus the answer here is A.ss