Mendelian and Non Mendelian traits

Front

What is a genotype?

Back

A genotype is the genetic makeup of an individual, represented by the alleles inherited from their parents.

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What is a phenotype?

Back

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

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene (e.g., AA or aa).

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene (e.g., Aa).

Front

What is a dominant trait?

Back

A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.

Front

What is a recessive trait?

Back

A recessive trait is one that is expressed in the phenotype only when two copies of the allele are present.

Front

What is the significance of the Punnett square?

Back

The Punnett square is a tool used to predict the genotypes of offspring from a genetic cross.

Front

What is the genotype for a person with type B blood?

Back

Possible genotypes for type B blood are I^B I^B or I^B i.

Front

What is the genotype for a blue-eyed child?

Back

The genotype for a blue-eyed child, given that blue eyes are recessive, would be bb.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic constitution, while phenotype refers to the physical expression of that genotype.