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QR Challenge: Reproductive QR Hunt

QuestionAnswer
How many vaginas does a female kangaroo have? 3 Two to accept sperm during mating and one for birthing. Male kangaroos have a two-pronged penis.
When does a human fetus develop fingerprints? at 3 months
How long were you a zygote? Average is half an hour. Then the zygote divided and began forming an embryo.
What is the smallest cell of the human body? The largest? Sperm. Egg.
True or False: Male bees “drones” die during or immediately after mating? True. The queen bee stores the sperm from several males in her body to fertilize eggs for the rest of her life.
True or False: Female Black Widow spiders and Praying Mantises eat the males after mating? Mostly false, though it is common in certain species.
Name 2 species (or at least 2 types of animals) that can change from male to female or vice versa. Clownfish and some frog species. They do this to maintain proper ratios for mating.
Do giraffes give birth standing up or laying down? Standing up. Which means the baby giraffe falls about 6 feet!
Does an octopus have live babies or lay eggs? She lays eggs. And she guards them without eating – and barely moving- until they hatch. Then she dies.
How long are chipmunks pregnant? 31 days
True or False: Penguins mate monogamously (with only their “one true love” other) for life? False. They only have one mate per season, and will try to find them the next season, but most often do not and choose a new mate.
What animal produces the world’s longest sperm? Drosophila bifurca, a species of fruit fly. Uncoiled, their sperm is 2 inches long!
How many mature eggs does a human female produce in her life? 300-400. 1/month from puberty through menopause.
How many sperm are required to produce fraternal twins? 2, 1 to fertilize each of 2 eggs. Fraternal twins are genetically no more similar to each other than any other siblings.
How many sperm does it take to produce identical twins? 1. After the zygote is formed, it splits and develops into 2 separate embryos, both with exactly the same DNA!
What is the plural of “uterus”? Uteri
What are the plurals of “octopus” and “platypus”? Octopuses and platypuses. OR octopodes and platypodes, but not octopi and platypi.
An individual with the chromosomes XXY has what condition? Are they male or female? Klinefelter’s syndrome, they are male because they have a Y chromosome.

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