Science · Genetics
Genetics Vocabulary
Heredity words for middle school: gene, allele, dominant, recessive, genotype and more.
- 🎓 Grades 7–8
- 🧪 Science
- 📐 MS-LS3-1
- ❓ 20 questions
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heredity
Passing traits from parents to offspring
trait
Feature such as eye color or height
gene
Section of DNA that codes for a trait
allele
One form of a gene
DNA
Molecule that carries genetic instructions
chromosome
Long coiled strand of DNA in the nucleus
dominant
Allele that shows up even with one copy
recessive
Allele hidden when a dominant one is present
genotype
The pair of alleles an organism has
phenotype
The trait you can see or measure
homozygous
Having two identical alleles for a gene
heterozygous
Having two different alleles for a gene
Punnett square
Chart that predicts offspring traits
mutation
Change in the DNA of a gene
genetics
Study of heredity
offspring
Young produced by parents
inherited
Passed down from parents
protein
Molecule built from instructions in genes
double helix
Twisted-ladder shape of DNA
probability
Chance that something will happen
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