Unit 7 Vocabulary

Alternative forms of a gene that occupy the same position (locus) on homologous chromosomes and influence the same trait but may have different effects.

A pattern of inheritance where both alleles of a gene are expressed equally in the phenotype of heterozygous individuals.

• Codominance
• Allele

• Genotype

• Genes

An allele that is expressed in the phenotype even when present in a heterozygous genotype, masking the expression of a recessive allele.

Segments of DNA that contain the instructions for producing specific proteins or functional RNA molecules, which contribute to the expression of traits.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Diseases or conditions caused by abnormalities or mutations in genes, such as sickle cell anemia, cystic fibrosis, hemophilia, and Huntington's Disease.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The scientific study of heredity and the variation of inherited traits among individuals and populations.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The genetic makeup of an organism, represented by the combination of alleles present for a particular trait or traits.

Having two different alleles for a specific gene in a pair of homologous chromosomes.

Having two identical alleles for a specific gene in a pair of homologous chromosomes.

The offspring resulting from a cross between two individuals with different genotypes or species.