2. The passing of traits from parents to offspring is called ____________________________

3. An organism with two of the same alleles (two dominant or two recessive) for a trait is called (hybrid or purebred) ____________________

4. An organism with two different alleles (one dominant and one recessive) for a trait is called (hybrid or purebred) ______________________

5. Sections of our DNA that control what traits we have are called _____________________

6. The physical characteristics or traits of an organism is called the ___________________
7. An allele whose trait will always shows up in the organism even if a recessive allele is standing next to it is called __________________________

8. Different forms or types of genes are called _______________________

9. The scientific study of genes and heredity is called __________________
10. An allele whose trait is hidden or does not really count when a dominant allele is next to it is called __________________________
11. The likelihood or chance that a particular event will occur is called _______________________

12. An organism that has two identical alleles (like two capital “T’s” or two lowercase “t’s” for example) is called ________________(homozygous or heterozygous)

13. An organism’s genetic makeup or allele combination is called the ____________________

14. An organism that has two different alleles (like one capital “T” and one lowercase “t” for example) for a trait is called __________________(homozygous or heterozygous).


15. The cell division process in which the number of chromosomes is divided in half two times to form sex cells is called ____________________________


16. A change that occurs in a gene or chromosomes is called a _________________________