An organism's genetic makeup, or allele combinations

• Phenotype

• Genotype

• Heterozygous

• Homozygous

An organism's physical appearance, or visible traits

• Phenotype

• Genotype

• Heterozygous

• Homozygous

Tags

NGSS.HS-LS4-4

Having two different alleles for a trait

• Phenotype

• Genotype

• Heterozygous

• Homozygous

Having two identical alleles for a trait

• Phenotype

• Genotype

• Heterozygous

• Homozygous

An allele whose trait always shows up in the organism when the allele is present

• Dominant Allele

• Capital Letter

• Lowercase Letter

• Recessive Allele

An allele that is masked when a dominant allele is present

• Dominant Allele

• Capital Letter

• Lowercase Letter

• Recessive Allele

Used to designate a recessive allele

• Dominant Allele

• Capital Letter

• Lowercase Letter

• Recessive Allele

 Used to designate a dominant allele

• Dominant Allele

• Capital Letter

• Lowercase Letter

• Recessive Allele

Which genotypes are heterozygous?

• BB

• Bb

• Rr

• rr

Which genotypes are homozygous?

• BB

• Bb

• Rr

• rr