Answer:
Due to the presence of dominant allele.
Step-by-step explanation:
The long tail feature comes to the offspring from their mother due to the presence of dominant allele. The dominant allele appears in the shape and structure of the offspring as compared to recessive allele which hide in the structure. The long tail appears in the structure of the baby crawfish so we can say that it is a dominant allele that transfer from the female parent into the offspring. In the offspring, some traits are transferred from father and some from mother.