



English — traits (thorough explanation)
1) What traits are (core idea)
Traits are characteristics or features of an organism.
They describe how an organism looks, behaves, or functions.
Trait = a characteristic of a living thing
Traits can be:
- Inherited (passed down from parents)
- Influenced by the environment
- Or a combination of both
2) Types of traits
A) Inherited (genetic) traits
These traits are controlled by genes and passed from parents to offspring.
Examples:
- Eye color
- Hair color and texture
- Blood type
- Natural height potential
📌 These traits are present from birth.
B) Acquired (environmental) traits
These traits develop due to life experiences or environment.
Examples:
- Suntan
- Muscle strength from exercise
- Scars
- Language spoken
📌 These traits are not inherited genetically.
C) Traits influenced by both genes and environment
Many traits result from both heredity and environment.
Examples:
- Height (genes + nutrition)
- Intelligence (genes + education)
- Athletic ability (genes + training)
3) Traits in genetics (Science 10 focus)
In genetics, traits are:
- Controlled by genes
- Each gene may have different alleles
- Alleles can be dominant or recessive
📌 Example:
- Brown eyes (dominant)
- Blue eyes (recessive)
Punnett squares are used to predict traits in offspring.
4) Genotype vs phenotype (important distinction)
| Term | Meaning | Example |
| --------- | ------------------- | ---------- |
| Genotype | Genetic makeup | Bb |
| Phenotype | Physical expression | Brown eyes |
📌 Traits are what you see (phenotype), based on genes (genotype).
5) Why traits matter
Traits:
- Explain similarities and differences between organisms
- Help scientists study inheritance
- Are the basis of natural selection and evolution
One-sentence exam summary
Traits are characteristics of organisms that can be inherited, acquired, or influenced by both genes and environment.
中文 — traits(性状 / 特征) 详细解释
1) 什么是性状(核心概念)
性状(traits)是指生物表现出来的特征或特点。
性状 = 生物的特征
2) 性状的类型
① 遗传性状
由基因决定,从父母传给子女。
例子:
② 获得性状
由环境或经历造成。
例子:
③ 遗传 + 环境共同影响
3) 遗传学中的性状(考试重点)
- 性状由基因控制
- 基因有不同等位基因
- 等位基因有显性和隐性
4) 基因型 vs 表现型
| 概念 | 含义 |
| --- | ---- |
| 基因型 | 基因组合 |
| 表现型 | 外在性状 |
一句话考试版总结
性状是生物的特征,由遗传和环境共同决定。
如果你需要,我可以把 traits / inherited traits / acquired traits / Punnett squares 做成 Science 10 中英对照闪卡或课堂练习题,直接用于教学或复习。
性状(trait)
EN: An inherited characteristic, such as eye colour or hair colour.
Example: Traits like seed colour in pea plants or the ability to taste bitterness are controlled by genes.
中文:一种可遗传的特征,如眼睛颜色、头发颜色等。
例子:豌豆的种子颜色、是否能尝出苦味,都是由基因控制的性状。