Non-Mendelian Genetics Practice

Front

What is codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive. Example: In ground beetles, a black and red beetle can produce offspring that are both black and red.

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. Example: Crossing red and white flowers may produce pink flowers.

Front

What are the expected phenotypes of a cross between a black ground beetle and a red & black ground beetle?

Back

The expected phenotypes are 50% black and 50% red & black.

Front

What is the probability of offspring being pink when two pink flowers are crossed?

Back

The probability of the offspring being pink is 50%.

Front

What is the inheritance pattern of blue and yellow scales in fish?

Back

The inheritance pattern is codominance, where both blue and yellow scales are expressed in the heterozygous offspring.

Front

What is the expected phenotype of heterozygous offspring from a blue fish crossed with a yellow fish?

Back

The heterozygous offspring will have both blue and yellow scales.

Front

What are the coat color patterns of Australian Shepherd dogs?

Back

The coat color patterns include Merle, Harlequin, and Albino, which can be inherited through various genetic crosses.

Front

What is the expected outcome of a cross that results in 50% Merle, 25% Harlequin, and 25% Albino?

Back

This specific outcome can be achieved through a specific genetic cross involving the alleles for these coat colors.

Front

Define phenotype.

Back

Phenotype refers to the observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Front

Define genotype.

Back

Genotype is the genetic constitution of an individual, specifically the alleles present at a particular gene locus.