预测遗传性状

解释等位基因在有性生殖中如何遗传，并使用庞尼特方格预测后代获得某种性状的概率，包括显性和隐性等位基因。

Explain how alleles are inherited in sexual reproduction and use Punnett squares to predict the probability of offspring inheriting a characteristic, including dominant and recessive alleles

学习证据 / Evidence

• 能够在遗传的语境下定义等位基因、显性和隐性。
• 能够为单因子杂交构建庞尼特方格，并计算概率比值。
• 能够解释基因型与表现型之间的区别。
• 能够举例说明一种由显性和隐性等位基因控制的人类性状。

• Defines allele, dominant, and recessive in the context of inheritance
• Constructs a Punnett square for a monohybrid cross and calculates probability ratios
• Explains the difference between genotype and phenotype
• Gives an example of a human characteristic controlled by dominant/recessive alleles

评估问题 / Assessment

如果{{name}}被问到：为什么一对棕色眼睛的父母会生出蓝色眼睛的孩子？{{name}}能否解释什么是显性和隐性等位基因，并用庞尼特方格演示这一现象？

If {{name}} was asked why two brown-eyed parents can have a blue-eyed child, could they explain what dominant and recessive alleles are and show how it works using a Punnett square?