- Nucleus: Location in a eukaryotic cell where the genetic material is stored.
- Chromosome: The coiled up form of a DNA molecule.
- Gene: A section of a chromosome which codes for a particular characteristic.
- Allele: Different versions of the same gene.
- Dominant: A characteristic which is expressed regardless of paired allele.
- Recessive: A characteristic which is only expressed if paired with an identical allele.
- Gamete: A sex cell, in humans this is an egg or a sperm.
- Homozygous: The physical expression of the characteristics in an organism.
- Heterozygous: The ability for a particular characteristic on different chromosomes.
- Genotype: The genes and alleles which determine the characteristics of an organism.
- Phenotype: The physical expression of the characteristics in an organism.
Parent Tip: Review the logic above to help your child master the concept of genetics worksheet for middle school.
