While recording the pulse rate, where exactly does a doctor press on our wrist?

1. Nerve
2. Vein
3. Artery
4. Capillary

In a human male, a sperm will contain:

1. Both X and Y chromosomes
2. Only Y Chromosomes
3. Only X chromosome
4. Either X or Y Chromosomes

On which day of the menstrual cycle does ovulation take place?

1. 5^th day
2. 28^th day
3. 14^th day
4. 1^st day

Which one of the following does not affect the rate of transpiration ?

1. Light
2. Humidity
3. Wind
4. Age of the plant