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Dominant and Recessive

Science, Grade 6

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Table Of Contents: Dominant and Recessive

1. What Is an Allele?
Different forms of the same gene are called alleles. An organism inherits two alleles for each gene.
2. Notation of Alleles
The alleles for rabbit fur color can be dominant or recessive. A capital letter is used to represent a dominant allele and a lowercase letter is used for a recessive allele.
3. Alleles and Traits
When both a dominant and recessive allele are present, the dominant trait is always seen.
4. Alleles Determine Traits
The dominant allele masks the presence of the recessive allele. The recessive trait is seen when there are two copies of the recessive allele.
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