1. A homozygous recessive genotype for the gene that encodes phenylalanine hydroxylase (which breaks down the amino acid phenylalanine) causes lighter skin color, a musty odor, differences in intellectual development, and seizures. 2. In pea plants, alleles of Gene W control flower color, with the dominant allele (W) leading to purple flower.color, and the recessive allele (w) leading to white flower color. Usually, a genotype of WW or Ww leads to purple flowers. However, when Gene C is homozygous recessive, WW or Ww plants always have white flowers. 3. In mallard ducks, feather coloring is controlled by Gene F. A dominant allele (F) leads to head feathers, while a recessive allele (f) leads to brown head feathers. In male green mallards, inheritance of one or more F alleles always leads to the green head feather trait. But female mallards always have brown head feathers, regardless of whether they are FF, Ff, or ff.

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**Non-Mendelian Inheritance Examples**

Match each of the following examples to the appropriate type of non-Mendelian inheritance.

1. **Description**: A homozygous recessive genotype for the gene that encodes phenylalanine hydroxylase (which breaks down the amino acid phenylalanine) causes lighter skin color, a musty odor, differences in intellectual development, and seizures.

2. **Pea Plant Example**: In pea plants, alleles of Gene W control flower color, with the dominant allele (W) leading to purple flower color, and the recessive allele (w) leading to white flower color. Usually, a genotype of WW or Ww leads to purple flowers. However, when Gene C is homozygous recessive, WW or Ww plants always have white flowers.

3. **Mallard Ducks Example**: In mallard ducks, feather coloring is controlled by Gene F. A dominant allele (F) leads to green head feathers, while a recessive allele (f) leads to brown head feathers. In male mallards, inheritance of one or more F alleles always leads to the green head feather trait. But female mallards always have brown head feathers, regardless of whether they are FF, Ff, or ff.

**Types of Non-Mendelian Inheritance**:

a) Multigene (or polygenic) inheritance  
b) Epistasis  
c) Pleiotropy  
d) Sex-limited inheritance  
e) Sex-influenced inheritance  
f) Genetic anticipation  
g) Lethal allele
Transcribed Image Text:**Non-Mendelian Inheritance Examples** Match each of the following examples to the appropriate type of non-Mendelian inheritance. 1. **Description**: A homozygous recessive genotype for the gene that encodes phenylalanine hydroxylase (which breaks down the amino acid phenylalanine) causes lighter skin color, a musty odor, differences in intellectual development, and seizures. 2. **Pea Plant Example**: In pea plants, alleles of Gene W control flower color, with the dominant allele (W) leading to purple flower color, and the recessive allele (w) leading to white flower color. Usually, a genotype of WW or Ww leads to purple flowers. However, when Gene C is homozygous recessive, WW or Ww plants always have white flowers. 3. **Mallard Ducks Example**: In mallard ducks, feather coloring is controlled by Gene F. A dominant allele (F) leads to green head feathers, while a recessive allele (f) leads to brown head feathers. In male mallards, inheritance of one or more F alleles always leads to the green head feather trait. But female mallards always have brown head feathers, regardless of whether they are FF, Ff, or ff. **Types of Non-Mendelian Inheritance**: a) Multigene (or polygenic) inheritance b) Epistasis c) Pleiotropy d) Sex-limited inheritance e) Sex-influenced inheritance f) Genetic anticipation g) Lethal allele
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