Question

In mammals that are seasonal breeders, females are receptive only once a year. This is called

• A. Follicular cycle
• B. oestrous cycle
• C. Menstrual cycle
• D. Luteal cycle

Answer 1

The correct option is B oestrous cycle

The females of placental mammals exhibit cyclical changes in the activities of ovaries and accessory ducts as well as hormones during the reproductive phase. In all non-primate mammals such cyclical changes during the reproductive phase, regardless of whether they are seasonal breeders or not, is called oestrus cycle.