Flashcard - Monohybrid & Dihybrid

Front

What is a monohybrid cross?

Back

A monohybrid cross is a genetic mix between two individuals with different alleles for a single trait, focusing on one characteristic.

Front

What is a dihybrid cross?

Back

A dihybrid cross is a genetic mix between two individuals that differ in two traits, examining the inheritance of two characteristics simultaneously.

Front

What does the term 'allele' mean?

Back

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

Front

What is the purpose of a Punnett square?

Back

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

Front

What is the genotype of an organism?

Back

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

Front

What is the phenotype of an organism?

Back

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

Front

In a monohybrid cross, what is the expected phenotypic ratio of the offspring?

Back

The expected phenotypic ratio is 3:1 for dominant to recessive traits.

Front

What is the expected genotypic ratio in a monohybrid cross?

Back

The expected genotypic ratio is 1:2:1 for homozygous dominant, heterozygous, and homozygous recessive.

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.