Two individual with similar external appearance but different genetic make up have the similar

Options

A. Genotype
B. Phenotype
C. Heterozygote
D. Homozygote

Answer

To solve the question, "Two individuals with similar external appearance but different genetic makeup have the similar," we can follow these steps:

### Step 1: Understand the Terms
- **Phenotype**: This refers to the observable physical characteristics of an organism, which are influenced by both genetic makeup and environmental factors.
- **Genotype**: This refers to the genetic constitution of an organism, which may not always be visible in its appearance.
- **Heterozygote**: This term describes an organism that has two different alleles for a particular gene, which can lead to a similar phenotype despite different genotypes.
- **Homozygote**: This refers to an organism that has two identical alleles for a particular gene, resulting in the same phenotype and genotype.

### Step 2: Analyze the Given Information
The question states that two individuals have similar external appearances (morphological characteristics) but different genetic makeups. This means that while their physical traits look alike, their underlying genetic information differs.

### Step 3: Identify the Correct Answer
Since the individuals share similar external appearances, we can conclude that they have similar phenotypes. However, since their genetic makeup is different, they cannot share the same genotype.

### Step 4: Eliminate Incorrect Options
- **Genotype**: Incorrect, as their genetic makeup is different.
- **Heterozygote**: While this term describes a situation where phenotype is the same but genotype is different, it is not the best answer to the question as it is not a direct answer to what they share.
- **Homozygote**: Incorrect, as both phenotype and genotype would be the same in this case.

### Conclusion
The correct answer is **phenotype** (Option B), as it directly refers to the similar external appearances of the two individuals despite their differing genetic makeups.

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