Q.

In cluster analysis of microarray data– A node is created between the                    scoring pair, and the gene expressed profiles of these two genes are averaged and the joined elements are weighted by the                     of elements they contain.

A. lowest, frequency
B. average, sequence
C. lowest, number
D. highest, number
Answer» D. highest, number
Explanation: the node is created as mentioned. the matrix is then updated replacing the two joined elements by the node.
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