Q9. (a) For each of the four statements below, identify whether it is True (T) or False (F) and briefly justify your ans

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Q9. (a) For each of the four statements below, identify whether it is True (T) or False (F) and briefly justify your answer:
(i) In a scale-free network, nodes’ degrees follow a Poisson distribution, which indicates that most nodes have roughly the same number of links, approximately equal to the network's average degree. (2 marks)
(ii) Preferential attachment generates hubs in complex networks through a 'rich-gets- richer' mechanism. (2 marks)
(iii) Scale-free networks are very robust against random failures. (2 marks)
(iv) Cellular networks are highly modular meaning that their degree distributions are
highly non-uniform. (2 marks)
(b) Briefly explain biological network alignment and its importance. (4 marks)
(c) The image below shows an alignment between two networks. Which of the statements below correctly describe the categorisation of the network alignment shown (choose one)? Briefly justify your answer. (3 marks)
A. One-to-one alignment, multiple alignment, and global alignment
B. One-to-many alignment, pairwise alignment, and local alignment
C. One-to-one alignment, pairwise alignment, and global alignment
D. One-to-one alignment, pairwise alignment and local alignment
Network A
Network B
(d) Define network motif and briefly explain its identification procedure? (3 marks) What do ‘motif clusters’ imply?