Genetics Practice

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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 possesses.

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What does homozygous mean?

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Homozygous refers to having two identical alleles for a particular gene, such as AA or aa.

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What does heterozygous mean?

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Heterozygous refers to having two different alleles for a particular gene, such as Aa.

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What is a dominant allele?

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A dominant allele is an allele that expresses its trait even when only one copy is present in the genotype.

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What is a recessive allele?

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A recessive allele is an allele that only expresses its trait when two copies are present in the genotype.

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What is phenotype?

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Phenotype is the physical appearance or observable characteristics of an organism, determined by its genotype.

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What is heredity?

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Heredity is the passing of traits from parents to offspring through genes.

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What is true breeding?

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True breeding refers to organisms that, when mated, produce offspring that are identical to themselves for a particular trait.

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What is gene splicing?

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Gene splicing is a molecular biology technique used to join together DNA from different sources.

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What is a genome?

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A genome is the complete set of genes or genetic material present in a cell or organism.