The ______ allele representing the original phenotype is_________ type and the allele ______ is generally the_______ type/allele.

Options

A. Functional, dominant, modified, recessive
B. unmodified, wild, modified, mutant
C. modified, wild unmodified, recessive
D. Both (1) & (2)

Answer

To solve the question, we need to fill in the blanks based on our understanding of alleles and their classifications. Let's break it down step by step.

### Step-by-Step Solution:

1. **Identify the Original Phenotype**: The question states "the ______ allele representing the original phenotype." The original phenotype refers to the traits that are typically found in a population without any mutations. These traits are usually associated with functional alleles.

- **Hint**: Think about what type of alleles are present before any changes or mutations occur.

2. **Determine the Type of the Original Allele**: Since the original phenotype is represented by functional alleles, we can conclude that the first blank should be filled with "functional."

- **Hint**: What do we call alleles that are not mutated and perform their intended function?

3. **Identify the Dominance**: The next part of the question is "is ______ type." The original or functional alleles are typically dominant in genetic inheritance. This means they are expressed in the phenotype even when only one copy is present.

- **Hint**: Consider how traits are inherited and which alleles are usually expressed over others.

4. **Identify the Modified Allele**: The question continues with "the allele ______ is generally the ______ type." The allele that is modified or mutated is often referred to as a recessive allele. These alleles can lead to changes or diseases and are typically not expressed unless two copies are present.

- **Hint**: Think about how mutations affect the expression of traits and what type of alleles are usually less common.

5. **Fill in the Last Blank**: Since we have established that the modified allele is recessive, we can fill in the last blank with "recessive."

- **Hint**: What term is used for alleles that do not manifest unless paired with another similar allele?

### Final Answer:
The **functional** allele representing the original phenotype is **dominant** type and the allele **modified** is generally the **recessive** type.

### Summary of the Filled Blanks:
- First Blank: functional
- Second Blank: dominant
- Third Blank: modified
- Fourth Blank: recessive