Heredity Flashcard Review: 24-25

Front

What is heredity?

Back

Heredity is the passing of traits from parents to offspring through genes.

Front

What is an allele?

Back

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

Front

What does it mean if an allele is dominant?

Back

A dominant allele is one that expresses its trait even when only one copy is present.

Front

What does it mean if an allele is recessive?

Back

A recessive allele only expresses its trait when two copies are present.

Front

What is incomplete dominance?

Back

Incomplete dominance is a type of inheritance where the phenotype of heterozygotes is intermediate between the phenotypes of the two homozygotes.

Front

What is co-dominance?

Back

Co-dominance is a type of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is a Punnett square?

Back

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

Front

What is the significance of Mendel's experiments?

Back

Mendel's experiments established the basic principles of heredity, including the laws of segregation and independent assortment.