Genetics

Front

What is the phenotype for the recessive trait?

Back

The phenotype for the recessive trait is blue eyes.

Front

What is the expected phenotype ratio when a roan cow and a roan steer mate?

Back

1 orange : 2 orange and white : 1 white.

Front

What does an open circle represent in a pedigree chart?

Back

An open circle represents a Not Affected Female.

Front

In Mendelian genetics, how many alleles does each person carry for a trait?

Back

Each person carries 2 alleles for a trait.

Front

What is the mode of inheritance for autosomal recessive traits?

Back

Autosomal recessive traits require two copies of the recessive allele for the trait to be expressed.

Front

Define phenotype.

Back

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

Front

Define genotype.

Back

Genotype is the genetic constitution of an individual, specifically the alleles present for a particular gene.

Front

What is co-dominance?

Back

Co-dominance is a form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in heterozygous individuals.

Front

What is a Punnett square used for?

Back

A Punnett square is used to predict the genotypes and phenotypes of offspring from a genetic cross.