A ____ mutation was not inherited from either parent. |
aromatic |
Purines have two ____ rings, whereas pyrimidines have one. |
coiled |
____ recessive conditions affect males more than females. |
de novo |
A ____ genotype has two different alleles. |
expressed |
DNA is ____ into strands called chromosomes. |
heterozygous |
Introns are ____ from pre-mRNA to form mRNA. |
spliced |
A chromosome contains hundreds or ____ of genes. |
thousands |
Different genes are ____ (activated) in different types of cells. |
X-linked |