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WorksheetsNon-Mendelian Genetics
Total questions: 16
Worksheet time: 21mins
Match the following
A trait that is controlled by more than one gene
Polygenic Inheritance
A trait in which a third phenotype appears that is a BLEND of the parental phenotypes
Incomplete Dominance
A trait in which a third phenotype appears which INCLUDES both parental phenotypes
Codominance
A trait located on the X chromosome
X-Linked Traits
A trait that has more than two alleles available per gene
Multiple Alleles
Disorder: Colorblindness (X-Linked)
Alleles: B, b
Dominant form of trait: Normal Vision
Recessive form of trait: Person is colorblind
What is the genotype of a female carrier of this disorder? (a)
Disorder: Colorblindness (X-Linked)
Alleles: B, b
Dominant form of trait: Normal Vision
Recessive form of trait: Person is colorblind
What is the genotype of a colorblind female? (a)
Disorder: Colorblindness (X-Linked)
Alleles: B, b
Dominant form of trait: Normal Vision
Recessive form of trait: Person is colorblind
What is the genotype of a colorblind male? (a)
Disorder: Colorblindness (X-Linked)
Alleles: B, b
Dominant form of trait: Normal Vision
Recessive form of trait: Person is colorblind
Fill out the Punnett square showing the cross between a heterozygous female and a colorblind male.
Disorder: Hemophilia (X-Linked)
Alleles: H, h
Dominant form of trait: Normal Blood Clotting
Recessive form of trait: Person has hemophilia
A phenotypically normal woman has phenotypically normal parents. However, she has a hemophilic brother. What are her chances of being a carrier for hemophilia
(a)
A woman with type B blood has two brothers with type O blood and one sister with type A blood. Determine the genotypes of her siblings and her parents using the Punnett square below
Snapdragons can be white, red, or pink. Which type of inheritance do snapdragons demonstrate for their color?
Incomplete Dominance
Codominance
Simple Genetics
Polygenic Alleles
Chickens can be black (BB), white (WW), or checkered (BW). What is the probability that two black chickens having a white offspring.
(a)
How are incomplete dominance and codominance alike? How are they different?
Create a third phenotype
Involves the expression of multiple alleles
Result in a blending of traits
Can lead to variations in phenotypes
Non-Mendelian inheritance patterns
Phenotype is a mix of the two parental phenotypes
Pink flowers from red and white parents
Both alleles are fully expressed in the phenotype
Both alleles contribute equally to the phenotype
Both alleles are visible in the offspring
Both alleles are dominant and expressed together
Both alleles are independently expressed
Both alleles are present in the genotype
In Mendelian genetics, what ratio of offspring would be expected to exhibit a recessive trait in a monohybrid cross between two heterozygous parents?
1:3
3:1
1:1
2:2
What type of genetic inheritance pattern is demonstrated when a human blood type is AB?
Incomplete Dominance
Codominance
Multiple Alleles
Simple Genetics
Which genetic principle explains the variation in skin color among humans?
Simple Dominance
Polygenic Inheritance
Single Allele Dominance
Environmental Influence
What is a genotype?
What is a phenotype?
Which type of inheritance is illustrated by human height?
Simple Dominance
Polygenic Inheritance
Single Allele Dominance
Environmental Influence
