Genetics & Heredity
Subject: Science · Grade level: 8th
DNA, genes, alleles, Punnett squares, and how traits get inherited.
In this lesson
- DNA: the instruction manual
- Dominant and recessive
- Punnett squares
Key terms
- DNA
- The molecule that stores genetic instructions.
- Gene
- A section of DNA that codes for a single trait.
- Chromosome
- A long, packaged strand of DNA. Humans have 23 pairs.
- Allele
- A version of a gene. You get one from each parent.
Genetics & Heredity lesson on BrightPath
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