In a coin toss experiment, a coin was tossed 5 times. What is the probability th

Question

In a coin toss experiment, a coin was tossed 5 times. What is the probability that all are heads or all are tails? a. 1/8 c. 1/128 d. 1/32 In nucleotide or protein sequence database search, which of the following indicates the match is more random than being biologically related (homologous)? a. A high identity percentage b. A high positive percentage c. A large expected value d. A large number of gaps The Needleman-Wunsch algorithm is good for a. protein structure simulation b. statistical significance test c. local alignment d. global alignment

Explanation / Answer

1. Answer is option B. P(all heads or all tails) = 2/32 = 1/16.

2. Answer is option A. In nucleotide or protein sequence database search, high identity percentage indicates the mathc is more random than being biologically related.

3. Answer is option D. The needleman wunsch algorithm is good for global sequence alignment or global alignment.

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