n.改变本性，变性

The DNA molecule undergoes denaturation when heated to high temperatures, causing the double helix to unwind.
DNA分子在高温加热时会发生变性，导致双螺旋结构松开。
In cooking, eggs can denature if cooked at too high a temperature, leading to a loss of their structural integrity.
烹饪中，鸡蛋如果烹调温度过高，可能会发生变性，丧失其原有的结构完整性。
Proteins in an enzyme may denature when exposed to extreme pH levels, losing their functionality.
酶中的蛋白质在遇到极端pH值时可能会变性，失去其功能。
The process of denaturation is crucial in the technique of gel electrophoresis for separating DNA fragments.
变性过程在凝胶电泳分离DNA片段的技术中至关重要。
Denaturation of hair dyes can lead to uneven color distribution or fading over time.
染发剂的变性可能导致颜色分布不均或随着时间推移褪色。
Denaturation of RNA occurs during the preparation of samples for sequencing, as heat helps break chemical bonds.
RNA在进行测序样本准备时会发生变性，因为加热有助于断裂化学键。
In photography, film emulsion can denature if exposed to excessive light, resulting in a loss of image quality.
在摄影中，胶片感光乳剂如果受到过量光线照射，可能会变性，导致图像质量下降。
The denaturing agent urea disrupts hydrogen bonding in proteins, making them more soluble in water.
尿素作为变性剂会破坏蛋白质间的氢键，使其在水中更易溶解。
Proteins in a folded state can denature when subjected to certain chemicals or extreme conditions, such as high pressure.
在折叠状态下，蛋白质可能因接触特定化学物质或极端条件（如高压）而变性。
Denaturation is a reversible process, meaning proteins can regain their original structure with the right conditions, like cooling down or adding a reducing agent.
变性是一个可逆过程，意味着蛋白质在适当条件下（如冷却或添加还原剂）可以恢复其原始结构。