what do the letters along the top and side of the punnet square (shown wiggling) represent 1 point

Question

-The alleles of each parent pea plant for the trait of seed shape
- the possible allele combinations of the offspring, pea plants for the trades of seed shape
-the alleles of each parent pea plant for the trait of seed color
- the possible allele combination of the offspring pea plant for the trait of seed color

Answer 1

The letters along the top and side of the Punnett square represent the alleles of each parent pea plant for the trait of seed shape.