Non-Mendelian Inheritance Worksheet
Explore various patterns of inheritance that deviate from Mendel's classic ratios, including incomplete dominance, codominance, multiple alleles, and polygenic inheritance.
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Non-Mendelian Inheritance
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Read each question carefully and provide concise, accurate answers based on your understanding of non-Mendelian inheritance patterns.
1. Which of the following inheritance patterns results in a blended phenotype in heterozygotes?
Codominance
Incomplete Dominance
Complete Dominance
Polygenic Inheritance
2. Human blood types (A, B, AB, O) are an example of which non-Mendelian inheritance pattern?
Incomplete Dominance
Codominance
Multiple Alleles
Both b and c
1. In , both alleles are expressed equally and distinctly in the heterozygote.
2. Traits like human skin color and height are examples of inheritance, where multiple genes contribute to the phenotype.
3. The phenomenon where a single gene affects multiple phenotypic traits is called .
1. Distinguish between incomplete dominance and codominance using an example for each.
2. Explain why polygenic inheritance often results in a continuous variation of phenotypes.
1. Epistasis occurs when one gene masks or modifies the expression of another gene.
True
False
2. All traits are determined by a single gene with two alleles.
True
False
Match each term on the left with its correct description on the right.
1. Pleiotropy
a. Multiple genes affecting one trait
2. Polygenic Inheritance
b. One gene affecting multiple traits
3. Multiple Alleles
c. More than two alleles for a gene
Observe the diagram below, which represents a DNA double helix. While DNA structure itself is Mendelian, the expression of genes on DNA can follow non-Mendelian patterns.
1. How does the concept of multiple alleles relate to the genetic information stored within a DNA molecule?