Identify the wrong statements from the following:

Options

A. High levels of estrogen triggers the ovulatory surge.
B. Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards.
C. Sperms released from seminiferous tubules are poorly motile / non-motile.
D. Progestion level is high during the post ovulatory phase of menstrual cycle.

Explanation

To identify the wrong statements from the provided options regarding human reproduction, we can analyze each statement step by step.

### Step 1: Analyze the first statement
**Statement:** High levels of estrogen trigger ovulatory surge.
**Analysis:** This statement is correct. Around the 14th day of the menstrual cycle, estrogen levels rise significantly, leading to an LH (luteinizing hormone) surge, which triggers ovulation (the release of the egg from the ovary).

### Step 2: Analyze the second statement
**Statement:** The oogonial cells start to proliferate and give birth to functional ova in regular cycles from puberty onwards.
**Analysis:** This statement is incorrect. Oogenesis, the formation of mature ova, begins during fetal development and is largely completed before birth. After birth, no new oogonia are formed; instead, the existing oogonia enter a dormant state until puberty, when they begin to mature into ova in a cyclical manner. Therefore, this statement is wrong.

### Step 3: Analyze the third statement
**Statement:** Sperm released from seminiferous tubules are poorly motile or non-motile.
**Analysis:** This statement is correct. Sperm released from the seminiferous tubules are indeed non-motile. They require additional fluids and nutrients from accessory glands (like the seminal vesicles and prostate) to gain motility.

### Step 4: Analyze the fourth statement
**Statement:** Progesterone level is high during the post-ovulatory phase of the menstrual cycle.
**Analysis:** This statement is correct. After ovulation, progesterone levels rise to prepare the uterine lining for potential implantation of a fertilized egg. This hormone is crucial for maintaining the thickened endometrial lining.

### Conclusion
After analyzing all statements, we find that the second statement is the only incorrect one. Therefore, the answer to the question is that the second statement is wrong.

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