Figure 2.

Selection of block sizes with minimal clustering of repeats. (a) Conditional probabilities of blocks of different sizes having an inverted repeat based on the previous block having a repeat (+), not having a repeat (○), or regardless of the previous block (♦). Representative data are from inverted repeats of H. sapiens and E. coli. (b) Frequency of repeats in 40-kb blocks relative to expectations along the same length of genomic DNA. Inverted and H palindromes are shown for H. sapiens and E. coli. IR and HP are defined in Table 1.