Mendelian Genetics

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What is Mendelian Genetics?

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Mendelian Genetics is the study of how traits are inherited from parents to offspring based on the principles established by Gregor Mendel.

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What is heredity?

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Heredity is the passing of genetic traits from parent to offspring.

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What is a gene?

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A gene is a segment of DNA that contains the instructions for building a specific protein, which influences a trait.

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What is an allele?

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An allele is a variant form of a gene that can result in different traits.

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What does homozygous mean?

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Homozygous refers to having two identical alleles for a particular gene (e.g., TT or tt).

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What does heterozygous mean?

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Heterozygous refers to having two different alleles for a particular gene (e.g., Tt).

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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 (e.g., T in Tt).

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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 (e.g., tt).

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What is a phenotype?

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A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

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What is a genotype?

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A genotype is the genetic makeup of an organism, representing the alleles it possesses.