GRADE 7 /understanding inheritance

when multiple genes determine a phenotype

• polygenic alleles

• multiple alleles

represented by uppercase letters

• dominance

• recessiveness

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

threadlike structures in cells

• genes

• chromosomes

when both alleles are expressed

• codominance

• incomplete dominance

determines outward appearance

• genotype

• phenotype

RR

• homozygous

• heterozygous