of the mother increases. For women under the age of 30, how many infants with Do
ID: 216889 • Letter: O
Question
of the mother increases. For women under the age of 30, how many infants with Down syndrome are born per 1,000 births? How many for women at age 40? At age 50? How many times more likely is a 50-year-old woman to give birth to a baby with Down syndrome than a 30-year-old woman? 90- 80 a 70 60 50- & 30 20 10 0 20 25 30 35 40 45 50 Age of mother BIOLOGY AND SOCIETY As described in the Biology and Society section, some species (includ- ing some endangered species) have been shown to be capable of reproduction via parthenogenesis, without participation of a mate. Wha implications might this have on efforts to repopulate endangered spe- cies? What drawbacks might a parthenogenesis program have on the . nll baina of the species it targets?Explanation / Answer
Under age 30, approximately <3/1000 infants may born with downs syndrome.
At age 40, approximately 10/1000 infants may born with downs syndrome.
At age 50, approximately 80/1000 infants may born with downs syndrome.
How many times...30 year old woman?
At age 50, the approximate infants with downs syndrome = 80
At age 30, the approximate infants with downs syndrome = 03
so, the answer is 80/3 = 26.6 ~ 27.
27 times more likely 50 year old woman to give birth than 30 year old woman.
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