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m_a_m_a [10]
3 years ago
14

1. Patient c:

Biology
1 answer:
Karolina [17]3 years ago
3 0
A. Patient is male because there is a Y chromosome

B. 47 chromosomes

C. Down syndrome or trisomy 21
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7 0
3 years ago
What are these structures stop blood flowing backwards into the atria.
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