<span>Polydactyly in its most common form, is an autosomal dominant mutation. Let's represent the mutation as P and the normal state as +. Thus, if both parents are heterozygous (P+), both would have the mutation (and thus have six fingered). They have 3/4 chances of having a child with the extra digit, 1/4 normal. </span>
The goldfish is a pet. In a home it is in a secure taken care of aquarium and will only grow to fit the size of the aquarium it is in.
I'm preparing for SSAT and i'm currently studying 120 words per day, and the best way for me personally is to use flashcards. Try that out