Genetics

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What is Genetics?

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Genetics is the study of heredity and the variation of inherited characteristics.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

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What is a Trait?

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Traits are the physical characteristics or features of an organism, influenced by genetics and environment.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

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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 trait.

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NGSS.HS-LS3-1

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What is a Chromosome?

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A chromosome is a threadlike structure located in the nucleus of cells, made of DNA and proteins, that carries genetic information.

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NGSS.HS-LS3-1

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How do DNA and Environment influence traits?

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Traits can be influenced by genetic factors (DNA) inherited from parents and environmental factors such as nutrition and lifestyle.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

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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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NGSS.HS-LS3-1

NGSS.HS-LS3-2

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What are Dominant and Recessive Traits?

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Dominant traits are expressed when at least one dominant allele is present, while recessive traits are expressed only when two recessive alleles are present.

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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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NGSS.HS-LS3-2

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What is Phenotype?

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Phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

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What is Genotype?

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Genotype is the genetic constitution of an individual, representing the alleles inherited from parents.

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NGSS.HS-LS3-2