Open QuestionFill in the blanks: ________ are segments of DNA that code for a specific protein, and the human ________ includes over 20,000 of these segments.
Multiple ChoiceWhen the two alleles controlling a trait are different, the individual is __________ for the trait.
Multiple ChoiceThe number of different gametes that can be produced in a male, based on independent assortment alone, equals __________.