Example sentences for: spacer

How can you use “spacer” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • For both 12- and 23-RSS, the positions exhibiting the strongest cooperative influence lie in the nonamer-proximal half of the spacer and in the heptamer and nonamer positions adjacent to the spacer (Figure 2).

  • Given the rapid rate of DNA loss for unconstrained sequences in Drosophila [ 48, 49], it is difficult to understand the mere existence of spacer intervals, as well as their conservation of length, without invoking some form of functional constraint acting on these sequences.

  • Each repeat contains five histone genes: Histone H1 (His1), Histone H3 (His3), Histone H4 (His4), Histone H2A (His2A) and Histone H2B (His2B) . Two predominant forms of the repeat, 4.8 and 5.0 kb, have been previously described and differ primarily in the size of the spacer DNA between His1 and His3 . The variants are not interspersed with one another; but form segregated clusters.

  • Therefore, silencing spreading in the wild-type “spacer” in the sandwich grafts could not be assisted by an endogenous sequence.

  • The patterns of nucleotide diversity at individual positions are similar for both 12- and 23-RSS: the initial CAC of the heptamer is invariant, the remaining four positions of the heptamer are moderately diverse, the spacer is highly diverse, and the A tract of the nonamer (positions 5 through 7) is better conserved than the other nonamer positions (Figure 1a).


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