Multiple alleles control the character of

Options

A. only skin colour
B. only blood groups
C. blood groups and skin colour
D. sickle-cell anaemia

Answer

**Step-by-Step Text Solution:**

1. **Understanding Multiple Alleles:**
- Multiple alleles refer to the presence of more than two alleles for a particular gene within a population. This means that while an individual can only inherit two alleles (one from each parent), there can be several variations of that gene present in the population.

2. **Examples of Traits Controlled by Multiple Alleles:**
- One of the most well-known examples of a trait controlled by multiple alleles is the ABO blood group system in humans. The gene that determines blood type has three alleles: I^A, I^B, and i.
- Another example is the gene responsible for skin color, which is influenced by multiple alleles that contribute to the range of skin tones observed in humans.

3. **Conclusion:**
- Therefore, multiple alleles can control various traits, including blood groups and skin color. However, the most commonly cited example in genetics is the ABO blood group system.