| DNA is ____ into strands called chromosomes. |
circular |
| ____ recessive conditions affect males more than females. |
coiled |
| Mitochondria and chloroplasts have their own ____ DNA. |
de novo |
| A ____ mutation was not inherited from either parent. |
expressed |
| Different genes are ____ (activated) in different types of cells. |
heterozygous |
| A ____ genotype has two different alleles. |
homozygous |
| A ____ genotype has two identical alleles. |
spliced |
| Introns are ____ (removed) from pre-mRNA to form mRNA. |
X-linked |
