Mendelian & Non-Mendelian Genetics

Front

What is codominance in genetics?

Back

Codominance is a type of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive. An example is the speckled flower color in certain carnations.

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What is the definition of phenotype?

Back

Phenotype refers to the physical expression or characteristics of a gene, such as flower color or height.

Front

What is the percentage of homozygous recessive offspring in a monohybrid cross?

Back

In a monohybrid cross, the percentage of homozygous recessive offspring is 25%.

Front

Identify the genotypes for red, white, and speckled carnations exhibiting codominance.

Back

Red = RR, White = WW, Speckled = RW.

Front

What is a homozygous dominant genotype?

Back

A homozygous dominant genotype consists of two dominant alleles for a trait, such as BB or AA.

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What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits or characteristics.

Front

What is polygenic inheritance?

Back

Polygenic inheritance is a type of inheritance where multiple genes influence a single trait, resulting in a range of phenotypes.

Front

What is incomplete dominance?

Back

Incomplete dominance is a type of inheritance where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

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 a dihybrid cross?

Back

A dihybrid cross is a genetic cross that examines the inheritance of two different traits, each controlled by different genes.