Respuesta :
Answer:
"tt" represents an allele pair for a recessive trait.
Step-by-step explanation:
A pair of alphabet in a punnet square is used to represent an allele pair (representing genotype for a given trait)
Usually a dominant trait is represented by an alphabet in capital letter while a recessive form of the same trait is represented by the same alphabet in small letters.
For example
If "T" represents the dominant trait "being Tall"
then "t" will represent the recessive trait "being short" or " not being tall"
Hence, "tt" represents an allele pair for a recessive trait.
