Genetics

Front

What is a recessive trait?

Back

A recessive trait is a version of a gene that is usually covered up by a dominant trait. For example, blue eyes are a recessive trait.

Front

What is the mother's genotype if she has two recessive alleles?

Back

The mother's genotype is 'dd', indicating she has two recessive alleles.

Front

What is the basic unit of heredity?

Back

The basic unit of heredity is a gene, which carries the information for traits.

Front

What role do pheromones play in animal behavior?

Back

Pheromones are used by animals to indicate readiness to mate.

Front

What does each box in a Punnett square represent?

Back

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

Front

What is a dominant trait?

Back

A dominant trait is a version of a gene that masks the effect of a recessive trait. For example, brown eyes are a dominant 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 a Punnett square used for?

Back

A Punnett square is used to predict the genetic outcomes of a cross between two organisms.

Front

What are alleles?

Back

Alleles are different versions of a gene that can exist at a specific locus on a chromosome.