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Menstrual cycle is characteristic to 1...

Menstrual cycle is characteristic to
1. Most seasonal breeders
2. Human females
3. Old world monkeys and apes
4. Cows

A

2,3,4

B

2,3

C

3,4

D

1,2

Text Solution

AI Generated Solution

The correct Answer is:
To determine which option correctly identifies the characteristic of the menstrual cycle, we can analyze each option step by step. 1. **Understanding the Menstrual Cycle**: The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of female primates. It is a key reproductive process. 2. **Evaluating Option 1: Most Seasonal Breeders**: Seasonal breeders typically have reproductive cycles that are influenced by environmental factors such as seasons. They do not have a menstrual cycle; instead, they may have estrous cycles. Therefore, this option is incorrect. 3. **Evaluating Option 2: Human Females**: The menstrual cycle is indeed a characteristic feature of human females. It involves a regular cycle of ovulation and menstruation. Therefore, this option is correct. 4. **Evaluating Option 3: Old World Monkeys and Apes**: Similar to human females, Old World monkeys and apes also experience a menstrual cycle. This is a characteristic feature of these primates. Therefore, this option is also correct. 5. **Evaluating Option 4: Cows**: Cows do not have a menstrual cycle; they have an estrous cycle, which is different from the menstrual cycle. Therefore, this option is incorrect. **Conclusion**: The menstrual cycle is characteristic of both human females (Option 2) and Old World monkeys and apes (Option 3). However, since the question asks for a singular characteristic, the most direct answer is Option 2: Human females. ### Final Answer: **Option 2: Human females**
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