Mendelian Genetics

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What is Mendelian Genetics?

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Mendelian Genetics is the study of how traits are inherited through the interactions of alleles, based on the principles established by Gregor Mendel.

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What does it mean for a trait to be dominant?

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A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.

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What does it mean for a trait to be recessive?

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A recessive trait is one that is only expressed in the phenotype when two copies of the allele are present.

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What is a Punnett Square?

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A Punnett Square is a diagram used to predict the genetic makeup of offspring from a cross between two parents.

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What is Mendel's Law of Segregation?

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Mendel's Law of Segregation states that during the formation of gametes, the two alleles for a trait separate from each other.

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How many alleles do you inherit from each parent for a specific trait?

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You inherit one allele from each parent for a specific trait, making a total of two alleles.

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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 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 the difference between homozygous and heterozygous?

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Homozygous means having two identical alleles for a trait, while heterozygous means having two different alleles for 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 produce different traits.