数值效应是明显的:退化地区的鲑鱼数量比原始地区少;然而,栖息地的丧失也有可能减少遗传多样性。
The numerical effect is obvious: there are fewer salmon in degraded regions than in pristine ones; however, habitat loss also has the potential to reduce genetic diversity.
遗传变化可能会多次和敏感的激活基因改造,并可能产生逐渐丧失生产力的转基因品种的或意外的有毒植物产品。
The genetic changes activated in GM may be numerous and subtle, and may produce gradual loss in productivity of GM varieties or unexpected toxic plant products.
成千上万的人因遗传性糖尿病而痛苦。糖尿病是一种杀死胰腺细胞、使身体丧失调节血糖水平功能的疾病。
Hundreds of thousands of people suffer from hereditary diabetes, a condition that destroys cells in the pancreas and leaves the body unable to regulate blood sugar levels.
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