Find the incorrect match
(a) Gamete : Pure for a trait
(b) Co-dominance : Flower color in Snapdragon
(c) Recessive gene : Expressed in homozygous
(d) Incomplete dominance : Carl Correns

Options

A. Gamete : Pure for a trait
B. Co-dominance : Flower colour in Snapdragon
C. Recessive gene : Expressed in homozygous
D. Incomplete dominance : Carl Correns

Answer

To find the incorrect match among the given options, let's analyze each option step by step:

### Step 1: Analyze Option (a) Gamete: Pure for a trait
- **Explanation**: A gamete is a reproductive cell (sperm or egg) that carries only one allele for each trait. Therefore, it is considered pure for that trait since it does not carry multiple alleles.
- **Conclusion**: This statement is correct.

### Step 2: Analyze Option (b) Co-dominance: Flower color in Snapdragon
- **Explanation**: Co-dominance occurs when both alleles in a heterozygous individual are fully expressed, resulting in a phenotype that shows both traits. This phenomenon is not typically associated with snapdragons; instead, it is commonly observed in human blood types (e.g., AB blood type). In snapdragons, the flower color exhibits incomplete dominance, where the phenotype is a blend of the two alleles.
- **Conclusion**: This statement is incorrect.

### Step 3: Analyze Option (c) Recessive gene: Expressed in homozygous
- **Explanation**: A recessive gene is expressed only when an individual has two copies of that gene (homozygous). If only one copy is present (heterozygous), the dominant trait will be expressed instead.
- **Conclusion**: This statement is correct.

### Step 4: Analyze Option (d) Incomplete dominance: Carl Correns
- **Explanation**: Carl Correns is known for his work on inheritance patterns, including the concept of incomplete dominance, where the phenotype of heterozygotes is intermediate between the phenotypes of the two homozygotes.
- **Conclusion**: This statement is correct.

### Final Conclusion:
The incorrect match is option (b) Co-dominance: Flower color in Snapdragon.

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