Non - Mendelian Genetics

Front

What does it mean to be heterozygous dominant?

Back

An individual is heterozygous dominant when they have one dominant allele and one recessive allele for a trait.

Front

What is codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits equally.

Front

What is incomplete dominance?

Back

Incomplete dominance occurs when the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygous parents.

Front

What is the phenotypic ratio of offspring from a cross of two pink heterozygous snapdragon hybrids (RW)?

Back

The phenotypic ratio is 1:2:1, resulting in one red, two pink, and one white flower.

Front

What are polygenic traits?

Back

Polygenic traits are controlled by more than one gene, and each gene may have two or more alleles.

Front

What is complete dominance?

Back

Complete dominance occurs when the phenotype of the heterozygote is the same as the phenotype of one of the homozygotes.

Front

What is an allele?

Back

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

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 for a particular gene.

Front

What is a monogenic trait?

Back

A monogenic trait is controlled by a single gene, which may have two or more alleles.