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In genetics traits are features and characteristics that can be passed from one generation to another.
- Examples include skin color,cleft chin, blood type, and height.
- Traits of dogs would include, length of tail, shape of ears and color.
- Each of these factors can be passed genetically to another generation.
- Each trait has different forms of the same trait.
- For example, everyone has a nose, but the nose can have many different shapes.
- The different forms of the same trait are called alleles.
- Traits can also be dominant or recessive
- Each individual has two alleles for each gene, one coming from mom and the other from dad.
- A dominant gene can be expressed even if only one copy of the gene is present.
- A dominant trait can be homozygous which means it has two of the same alleles, or heterozygous which means it has two different alleles.
- A recessive trait will only be expressed if an individual homozygous recessive.
- Phenotype is the physical expression of a trait.
See which of these traits that you have.
- Attached earlobes vs free earlobes
- Straight hair line vs. widows peak
- Cleft chin vs no cleft chin
- Tongue roll vs no tongue roll
- Longer 2nd toe vs shorter 2nd toe
In summary, a trait is a feature that can be passed from one generation to the next.
What are traits?
What are traits?