expand icon
book Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson cover

Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson

Edition 8ISBN: 978-0077536848
book Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson cover

Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson

Edition 8ISBN: 978-0077536848
Exercise 6
Down syndrome is the result of-
A) a single-base substitution on human chromosome 21
B) nondisjunction of chromosome 21 during meiosis
C) inactivation of chromosome 21
D) nondisjunction of chromosome 21 during mitosis in early development
Explanation
Verified
like image
like image

Explanation: Down syndrome is ...

close menu
Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson
cross icon