Multiple choice

Which of the following statements are FALSE? P. PAM matrices are based on Markov model of protein evolution. Q. SRS is a website that indexes many biological databases and is searchable by keywords. R. Sequences that share an arbitrary, threshold level of similarity determined by alignment of matching bases are termed as homologous sequences. S. The paired dot in the sequence alignment represents semi-conserved substitutions.

  1. Only P and Q

  2. Only P and R

  3. Only P and S

  4. Only Q and R

  5. Only R and S
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is the correct answer. Both are false. PAM matrices are based on Dayhoff model of protein evolution. The paired dot in the sequence alignment represents conserved substitutions.

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