英文關鍵字
acids
adenine
amino
atoms
biochemistry
biological
biotechnology
bonds
carbon
chromosomes
cytosine
deoxyribose
dna
double
elements
gene
genetic
guanine
helix
hydrogen
medical
molecules
nitrogen
nucleobase
nucleotides
nucleus
oxygen
phosphorus
purines
pyrimidines
rna
science
sugar
thymine