Heredity

Front

What is heredity?

Back

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

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What are alleles?

Back

Alleles are different forms of a gene that determine specific traits.

Front

What does homozygous mean?

Back

Homozygous refers to an organism that has two identical alleles for a trait.

Front

What does heterozygous mean?

Back

Heterozygous refers to an organism that has two different alleles for a trait.

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 codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

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

In a dihybrid cross, how many boxes does the Punnett square need to have?

Back

A dihybrid cross requires a Punnett square with 16 boxes.

Front

What is the purpose of a test cross?

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A test cross is used to determine the genotype of an organism with a dominant phenotype by crossing it with a homozygous recessive organism.