Unit 5 Crossword

4. the failure of the chromosomes to separate
6. the dominant allele completely masks the effect of the recessive allele in heterozygous conditions.
9. a quality that sets one person or thing off from another.
10. the presence of a single set of chromosomes in an organism's cells.
11. a person who can pass an inherited (genetic) disease on to their children but who does not have the disease.
12. The presence of two identical alleles at a particular gene.
13. one that has two complete sets of chromosomes.
15. does not produce a trait at all when only one copy is present.
16. A special form of cell division in which each daughter cell receives half the amount of DNA as the parent cell.

1. exchange of genes between two chromosomes
2. An allele that overrules the other allele
3. The basic unit of heredity passed from parent to child.
5. The statistical hypothesis that states that there will be no differences between observed and expected data.
7. the set of observable characteristics of an individual.
8. The presence of two different alleles at a particular gene.
14. A diagram of family history that uses standardized symbols.