Non-Mendelian Genetics

Front

What is Non-Mendelian Genetics?

Back

Non-Mendelian Genetics refers to patterns of inheritance that do not follow Mendel's laws of inheritance, including concepts like incomplete dominance, co-dominance, and multiple alleles.

Front

How many alleles does an individual have for each trait?

Back

2

Front

What are alleles?

Back

Alleles are different forms of a gene that can exist at a specific locus on a chromosome.

Front

What is co-dominance?

Back

Co-dominance is a genetic scenario where both alleles in a heterozygous individual are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

Front

Give an example of co-dominance.

Back

An example of co-dominance is the AB blood type in humans, where both A and B alleles are expressed.

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic situation where one allele does not completely dominate another, resulting in a phenotype that is a blend of the two.

Front

Give an example of incomplete dominance.

Back

An example of incomplete dominance is the flower color in snapdragons, where red and white flowers produce pink offspring.

Front

What is the difference between co-dominance and incomplete dominance?

Back

In co-dominance, both alleles are fully expressed, while in incomplete dominance, the phenotype is a blend of the two alleles.

Front

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 is a genotype?

Back

A genotype is the genetic constitution of an individual, specifically the alleles present at a given locus.