Genetics Final

Front

What is a dihybrid cross?

Back

A dihybrid cross is a genetic cross that examines the inheritance of two different traits, each represented by two alleles.

Front

What is the probability of obtaining a specific phenotype in a dihybrid cross?

Back

The probability is calculated by determining the ratio of the desired phenotype to the total number of offspring phenotypes.

Front

Define phenotype.

Back

Phenotype refers to the observable physical characteristics of an organism, determined by its genotype and environmental influences.

Front

Define genotype.

Back

Genotype is the genetic makeup of an organism, consisting of the alleles inherited from its parents.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene.

Front

What is a Punnett square?

Back

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

Front

What is the significance of a pedigree chart?

Back

A pedigree chart is used to track the inheritance of traits through generations in a family.

Front

What is the expected phenotypic ratio for a dihybrid cross?

Back

The expected phenotypic ratio for a dihybrid cross is 9:3:3:1.

Front

What is hemophilia?

Back

Hemophilia is a genetic disorder that impairs the body's ability to make blood clots, leading to excessive bleeding.