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Author Question: Trisomy 21 a. occurs only in infants born to women who got pregnant at 45 years or older. b. is ... (Read 63 times)

piesebel

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on: Jul 10, 2018
Trisomy 21
 
  a. occurs only in infants born to women who got pregnant at 45 years or older.
  b. is caused by nondisjunction.
  c. is caused by having three X chromosomes.
  d. is usually lethal.
  e. occurs only among nonhuman primates.

Question 2

Which is NOT true about recombination?
 
  a. It is the exchange of genetic material between paired chromosomes.
  b. It is also called crossing over.
  c. It occurs during mitosis.
  d. Its pairing ensures each new daughter cell receives only one of each pair.
  e. It occurs in gamete formation.


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rosiehomeworddo

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Reply #1 on: Jul 10, 2018
Answer to Question 1

b

Answer to Question 2

c


piesebel

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Reply #2 on: Jul 10, 2018
TY


rosiehomeworddo

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Reply #3 on: Jul 10, 2018
Happy to Help


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