how much do you know about sperm?

JoAnna Wendel 8.15.2020 6:00 PM Sperm

Shutterstock How many chromosomes does a sperm cell contain? A. 46 B. 23 C. 100 D. 17

Shutterstock B. 23. Human DNA molecules are packaged into chromosomes, and most human cells have 46. Reproductive cells like sperm and eggs, however, each have half that amount.

Shutterstock How many sperm per second does the typical human male produce? A. 20 B. 20,000 C. 1,500 D. 1 milion

Shutterstock C. The typical human male produces about 1,500 sperm per second — that’s just over 1 million sperm cells per day.

Shutterstock At what age does and man’s semen quality start to decline? A. 51 B. 64 C. 29 D. 93

Shutterstock A. Early research shows that a man’s sperm quality starts to decline around age 51.

Shutterstock When was sperm discovered? A. 1492 B. 12 BCE C. 1988 D. 1677

Shutterstock D. Dutch scientist Anton van Leeuwenhoek first observed sperm in 1677.

Shutterstock True or False: Smoking marijuana can lower sperm count. A. True B. False C. It’s complicated

Shutterstock C. There are studies that have shown both that marijuana lowers or raises sperm count. At this point, scientists know that testicles and sperm cells contain a neurotransmitter that interacts with cannabinoids in marijuana, they just don’t know how that interaction affects sperm.

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