Monohybrid Cross Flashcard

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

Define dominant allele.

Back

A dominant allele is an allele that expresses its trait even when only one copy is present in the genotype.

Front

Define recessive allele.

Back

A recessive allele is an allele that only expresses its trait when two copies are present in the genotype.

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 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 outcome of a genetic cross by showing the possible combinations of alleles.

Front

What is the probability of offspring having a dominant trait if both parents are heterozygous?

Back

The probability is 75% for the offspring to express the dominant trait.

Front

What is the expected phenotypic ratio of a monohybrid cross between two heterozygous parents?

Back

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