The Meaning of Life 生命的真谛 2
Code Breakers 基因密码破译者 22
Potential Benefits of Human Genome Project Research 人类基因组研究的潜在价值 42
A Clone in Sheep s Clothing 克隆羊 56
Pass the Genes, Please 请赐基因 64
Ready-to-Wear Flesh 人造皮肤 82
Placental Puzzle 胎盘之谜 92
Know Your Enemy 认识你的敌人 110
New Gene-therapy Techniques Show Potential 新基因治疗技术显露潜力 128