A child with down syndrome has 3 copies of chromosome

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Question 3A child with Down Syndrome has 3 copies of chromosome 21 (trisomy 21).Which statement could be true in regards to this child?The sperm could have had 2 copies of chromosome 21.A. One gamete had 2 copies of chromosome 21 and the other gametehad 1 copy.B. All these answers could be true.C.
Meiosis Quiz...1 of 47/12/2016 6:14 PM
Points: 10 out of 10Question 4Mitosis results in ______ cells and meiosis results in _______ cells.Points: 10 out of 10Points: 10 out of 10The egg could have had 2 copies of chromosome 21.D. None of these answers could be true.E. FeedbackYes. All of these answers could be true.
Question 5Crossing over occurs between homologous chromosomes during what stage ofcell division? (Read each option carefully.)

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