Genetics and Heredity

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What are genes?

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Genes are the basic units of heredity in living organisms. They are made up of DNA and determine traits such as eye color and height.

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What is heredity?

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

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What is a dominant gene?

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A dominant gene is a gene that can express its trait even if only one copy is present. It masks the effect of a recessive gene.

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What is a recessive gene?

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A recessive gene is a gene that only expresses its trait if two copies are present. It can be masked by a dominant 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 eye color, height, or fur pattern.

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What does it mean to inherit a trait?

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To inherit a trait means to receive that characteristic from one's parents through their genes.

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What is a phenotype?

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

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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 carries for a particular trait.

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What are alleles?

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Alleles are different forms of a gene that can exist at a specific locus on a chromosome.

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What is the role of the environment in heredity?

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The environment can influence how genes are expressed, affecting traits like height and weight.