6. What is a recessive allele
- Allele that is only expressed if the dominant allele is missing
- Allele that is only expressed if there is two of them
- Allele that is always expressed if present
- Allele that is usually expressed
7. What are the things that a DNA molecule contains four of
- Bases
- Alleles
- Genes
- Microbes
8. What is homozygous
- Same gene and same version
- Different gene and different version
- Different gene but same version
- Same gene but different version