wendygirlwv wendygirlwv

29-06-2017
Biology

contestada

Down syndrome is a condition in which the individual has which chromosome?
A. 3 copies of chromosome 23
B. 3 copies of chromosome 21
C. Lacks chromosome 46
D. Has only one chromosome 21

Respuesta :

humanbeing00 humanbeing00

29-06-2017

hey answer ma question
Which of the following is an example of a long-term climatic change?
A. Winter B. Summer C. Ice age D. La Niña

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