[Campbell Biology P.400] Based on the sequence logo derived from the ten E. coli genes the s... | Practice Question

Based on the sequence logo derived from the ten E. coli genes the smaller logo provided in the "Data from the Experiment" section , which two positions show the highest predictability for a base?

  • A: Positions -9 and -8
  • B: Positions -1 and 2
  • C: Positions 3 and 4
  • D: Positions -14 and -13

Explanation

The text states that 'If the stack is tall, we can be more confident in predicting what base will be in that position'. Visually, in the smaller sequence logo derived from 10 genes , positions -1 and 2 have the tallest stacks, indicating high predictability. Position -1 has a very tall G stack, and position 2 also has a very tall G stack.