Genetics

2. A segment of DNA on a chromosome that codes for a specific trait
4. organism's genetic makeup or allele combination
5. cell division that produces reproductive cells in sexually reproducing organisms
7. region where two sister chromatids are joined tightly together
9. an organism that has two different alleles for a trait
12. A complex molecule containing the genetic information that makes up the chromosomes
14. A characteristic that an organism can pass on to its offspring through its genes
15. A gene that has more than two alleles
16. chart that shows all the possible combinations of alleles that can result from a genetic cross

1. physical traits you can see
3. The passing of traits from parents to offspring
6. having two identical alleles for a trait
8. one of two identical strands into which a chromosome splits during mitosis
10. is hidden whenever the dominant allele is present
11. an allele whose trait always shows up in the organism when the allele is present
13. cell division in which the nucleus divides into nuclei containing the same number of chromosomes