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base pair

base pair

6 3.9
Two matching chemical parts in DNA or RNA that join the two strands, for example adenine with thymine
  • noun
  • /beɪs pɛr/
  • Specialized
translation icon : par de bases
  • This DNA molecule model has fifty of the base pair building blocks of DNA.
  • base pair deletion
  • DNA base pairs
  • billion base pairs

And when these three bases meet the their their counterparts, they form base pairs just like the base pairs in adna Helix.

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Examples

  • The DNA ofall life on Earth has only four base pairs.

  • Their DNA has ten base pairs.

  • The latest data sets we're getting consist of 100 million 51 base pair reads with associated quality data.

    Blog text (16)
  • And that single base pair change created a potent oncogene.

  • In a human cell, this means that the entire three-billion-base-pair genome is reduced to fragments about 50 base pairs long.

    Academic text (2010)
  • There's four base pairs in DNA, but with those four, four base pairs in a specific sequence can generate an entire code for life.

  • I look forward to the day, perhaps not far off, when we can identify the genes and even the base-pair substitutions responsible for phenotypic variation within populations and between species.

    Academic text (2007)
  • Biology rests on the digital information coded in a few billion base pairs, and the industrial-scale project to unravel the human genome will soon be complete.

    Academic text (2000)
  • The scientist explained that each gene consists of multiple base pairs that are crucial for DNA function.

  • In order to study genetic variation, researchers analyze the sequence of base pairs in the DNA.

Surface Forms

base pair singular
base pairs plural

Morphology

base + pair

The compound is directly compositional: 'base' (a nitrogenous base) combined with 'pair' (two matching items) yields the meaning 'two complementary nitrogenous bases'. This noun–noun construction follows regular English compounding and is cross-linguistically common in scientific terminology, so a B1 learner who knows the constituents can infer the MWE meaning.

Etymology

Base pair comes from the image of two base units fitting together like matched puzzle pieces, and a pair is simply two that match. So today 'base pair' means two matching building blocks that join the two strands of DNA.