Heredity/genetics

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What is heredity?

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Heredity is the passing of traits from parents to their offspring.

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What is a gene?

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A gene is a segment of DNA that determines a specific trait.

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What is an allele?

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An allele is a variant form of a gene.

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What does dominant mean in genetics?

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A dominant trait is one that will appear in the phenotype even if only one allele is present.

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What does recessive mean in genetics?

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A recessive trait is one that only appears in the phenotype if two recessive alleles are inherited.

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What is a phenotype?

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A phenotype is the observable physical or biochemical characteristics of an organism.

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What is a genotype?

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A genotype is the genetic makeup of an organism, represented by the alleles it carries.

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What does homozygous mean?

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Homozygous means having two identical alleles for a particular gene.

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What does heterozygous mean?

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Heterozygous means having two different alleles for a particular gene.

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What is a trait?

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A trait is a characteristic or feature of an organism, such as flower color.