which of the following example of intragenic inheritance was discovered by Mendel?

Options

A. Co-dominance
B. Incomplete dominance
C. complete dominance
D. None

Answer

To solve the question regarding which example of intragenic inheritance was discovered by Mendel, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Intragenic Inheritance**:
- Intragenic inheritance refers to the interaction between alleles of the same gene. This can include various forms of dominance and expression of traits.

2. **Identify the Options**:
- The question presents options that include co-dominance, incomplete dominance, and complete dominance. We need to evaluate each of these to determine which were discovered by Mendel.

3. **Evaluate Co-Dominance**:
- Co-dominance occurs when both alleles in a heterozygous individual contribute equally to the phenotype. An example is the ABO blood group system where both A and B alleles are expressed in individuals with AB blood type. Mendel's work laid the foundation for understanding this concept.

4. **Evaluate Incomplete Dominance**:
- Incomplete dominance is when the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes. A classic example is the crossing of red and white flowers resulting in pink flowers. This concept was also part of Mendel's studies.

5. **Evaluate Complete Dominance**:
- Complete dominance is when one allele completely masks the effect of another allele. This is a fundamental principle in Mendelian genetics, where dominant alleles suppress the expression of recessive alleles.

6. **Conclusion**:
- Since co-dominance, incomplete dominance, and complete dominance are all concepts that were explored by Mendel, the answer to the question is that all the mentioned examples of intragenic inheritance were discovered by Mendel.

### Final Answer:
None of the options provided are examples of intragenic inheritance that were not discovered by Mendel; all were indeed part of his findings.