What is a section of DNA that provides instructions for making a protein?

• Allele

• Gene

• Phenotype

• Chromosome

Tags

NGSS.HS-LS1-1

Different versions of the same gene are called:

• Chromosomes

• Genotypes

• Alleles

• Mutagens

Matching chromosomes from mom and dad that carry the same genes but may have different versions are called:

• Homozygous pairs

• Homologous chromosomes

• Monohybrid crosses

• Genotypes

If a plant has two of the same alleles for a trait (AA or aa), it is:

• Heterozygous

• Homozygous

• Dominant

• Recessive

If a plant has two different alleles for a trait (Aa), it is:

• Homozygous

• Recessive

• Heterozygous

Which allele is only expressed if the dominant allele is not present?

• Dominant

• Genotype

• Recessive

• Mutation

Which allele will always be expressed if present?

• Homozygous

• Dominant

• Carrier

• Epistasis

The letters written for a trait (like Bb) represent an organism’s:

• Genotype

• Phenotype

• Allele

• Pedigree

The physical expression of a trait (like purple flowers) is the:

• Genotype

• Punnett square

• Phenotype

• Chromosome

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

A diagram used to predict possible offspring genotypes and phenotypes is a:

• Pedigree

• Punnett square

• Dihybrid cross

• Mutation