Matching: Write the letter of the definition next to the vocabulary word.
______ 1. Allele A. Same species living in same area at same time
______ 2. Population B. Segment of DNA that codes for trait
______ 3. Heterozygous C. Organisms and offspring that can reproduce
______ 4. Gene D. Genotype can carry the lethal recessive allele
______ 5. Species E. A form of a gene