Genetics

1. An organism that has two different alleles for a trait
3. the second generation of offspring, obtained from an experimental cross of two organisms; the offspring of the F1 generation
6. Cross A genetic cross in which only one trait is tracked
9. Law that states that a recessive allele will always be masked by a dominant allele.
10. Assortment Mendel's second law, stating that allele pairs are not linked and separate independently from one another during gamete formatio
13. Augustinian monk and botanist whose experiments in breeding garden peas led to his eventual recognition as founder of the science of genetics (1822-1884)
14. of Segregation Mendelian law stating that two alleles for each trait separate during meiosis
18. An organism that has two identical alleles for a trait
20. An organism's genetic makeup, or allele combinations
21. Passing of traits from parents to offspring
22. Square A chart that shows all the possible combinations of alleles that can result from a genetic cross

2. An allele that can be hidden whenever the dominant allele is present
4. Characteristics that are inherited
5. An organism's physical appearance, or visible traits.
7. one of a number of different forms of a single gene
8. An allele whose trait always shows up in the organism when the allele is present.
11. Parental generation, the first two purebred individuals that mate in a genetic cross
12. the first generation of offspring obtained from an experimental cross of two organisms
15. The field of biology that studies heredity
16. Offspring of crosses between parents with different traits
17. An organism that always produces offspring with the same form of a trait as the parent. Often also called a "true-bred"
19. Cross A genetic cross in which the inheritance of two traits are tracked at the same time.