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Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson
النسخة 8الرقم المعياري الدولي: 978-0077536848Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson
النسخة 8الرقم المعياري الدولي: 978-0077536848 تمرين 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
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
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Explanation: Down syndrome is ...
Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson
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