Inheritance

Front

What is DNA?

Back

Deoxyribonucleic acid, the molecule that carries genetic information.

Front

What are genotypes?

Back

Genotypes are the genetic makeup of an organism, represented by letters (e.g., Aa, DD).

Tags

NGSS.HS-LS3-2

Front

What is a phenotype?

Back

Phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What is a homozygous genotype?

Back

A homozygous genotype has two identical alleles for a trait (e.g., AA or aa).

Front

What is a heterozygous genotype?

Back

A heterozygous genotype has two different alleles for a trait (e.g., Aa).

Front

What does a Punnett square represent?

Back

A Punnett square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.

Tags

NGSS.HS-LS3-2

Front

What probability does each box in a Punnett square represent for an offspring's genotype?

Back

Each box represents a 25% probability of an offspring's genotype.

Tags

NGSS.HS-LS3-3

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even if only one copy is present, while recessive alleles require two copies to express their trait.

Front

What is an allele?

Back

An allele is a variant form of a gene that can produce different traits.

Tags

NGSS.HS-LS3-2

Front

What is the significance of the genotype Bb?

Back

Bb is a heterozygous genotype, indicating the presence of one dominant allele (B) and one recessive allele (b).

Tags

NGSS.HS-LS3-2