Which of the following statements is incorrect?

Options

A. Formation of gametes may or may not occur in somatogenic reproduction
B. Proter and opisthe are results of binary fission in Paramoecium
C. Sexual reproduction is always biparental
D. Monocystis exhibits sporulation in favourable condition

Answer

To determine which statement is incorrect, we will analyze each option provided in the question step by step.

### Step 1: Analyze Option 1
**Statement:** The formation of gamete may or may not occur in somatogenic reproduction.

**Explanation:** Somatogenic reproduction involves the reproduction process where somatic cells are involved. In this type of reproduction, gametes may or may not be formed. Therefore, this statement is **correct**.

### Step 2: Analyze Option 2
**Statement:** The proter and opeste are the result of binary fission in paramecium.

**Explanation:** Paramecium is a unicellular organism that reproduces asexually through binary fission. During this process, the parent cell divides into two daughter cells, which are referred to as proter and opeste. Thus, this statement is also **correct**.

### Step 3: Analyze Option 3
**Statement:** Sexual reproduction is always bi-parental.

**Explanation:** Bi-parental reproduction means that two different individuals (male and female) contribute gametes. However, in hermaphroditic organisms, a single individual can produce both male and female gametes, leading to uniparental reproduction. Therefore, sexual reproduction is not always bi-parental; it can also be uniparental. This makes this statement **incorrect**.

### Step 4: Analyze Option 4
**Statement:** Monocystis exhibits sporulation in favorable conditions.

**Explanation:** Monocystis is known to reproduce asexually through sporulation, which occurs under favorable conditions. This statement is **correct**.

### Conclusion
After analyzing all the statements, we find that the incorrect statement is Option 3: "Sexual reproduction is always bi-parental."

---