Base pair meaning

A base pair refers to two nucleotides on complementary DNA strands that are connected by hydrogen bonds.


Base pair definitions

Word backwards esab riap
Part of speech Noun
Syllabic division base pair (2 syllables - base / pair)
Plural The plural of the word "base pair" is "base pairs."
Total letters 8
Vogais (3) a,e,i
Consonants (4) b,s,p,r

Base pairs are the building blocks of DNA, the molecule that carries genetic information in all living organisms. In DNA, there are four types of nucleotide bases: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair up in a specific way: adenine with thymine, and cytosine with guanine. This pairing is essential for the double helix structure of DNA.

Function of Base Pairs

The pairing of bases in DNA is crucial for the replication and transcription of genetic information. During DNA replication, the two strands of the double helix separate, and each strand serves as a template for the synthesis of a new complementary strand. The base pairing rules ensure that the new strand is an exact copy of the original strand. In transcription, DNA is used as a template to produce messenger RNA (mRNA), which carries the genetic information from the nucleus to the ribosomes for protein synthesis.

Base Pairing in DNA Replication

During DNA replication, an enzyme called DNA polymerase moves along the separated strands of DNA and adds complementary nucleotides to each strand according to the base pairing rules. This process results in two identical copies of the original DNA molecule. Any errors in base pairing can lead to mutations, which can have harmful effects on the organism.

Base Pairing in Protein Synthesis

In protein synthesis, mRNA is transcribed from DNA and then translated into a specific sequence of amino acids to form a protein. The genetic code, which specifies the relationship between a sequence of nucleotide bases in RNA and a sequence of amino acids in a protein, is determined by the base pairing rules. Each set of three nucleotides in mRNA, called a codon, codes for a specific amino acid. This process relies on the accurate pairing of bases to ensure the correct sequence of amino acids in the protein.

Base pairs are fundamental to the storage and expression of genetic information in all living organisms. The precise pairing of the nucleotide bases adenine, thymine, cytosine, and guanine is essential for the structure and function of DNA. Understanding the role of base pairs in DNA replication and protein synthesis is key to unraveling the mysteries of genetics and heredity.


Base pair Examples

  1. The DNA molecule is made up of two strands that are held together by hydrogen bonds between base pairs.
  2. Adenine always pairs with thymine, and guanine always pairs with cytosine in a DNA base pair.
  3. The genetic code is dictated by the sequence of base pairs in a DNA molecule.
  4. Mutations can occur when there is a substitution of one base pair with another in the DNA sequence.
  5. Scientists use base pair sequencing to determine the order of nucleotides in a DNA molecule.
  6. Base pair complementarity is essential for the stability and function of DNA double helix structure.
  7. The human genome contains billions of base pairs that make up our genetic information.
  8. RNA molecules also form base pairs, but with uracil instead of thymine in DNA.
  9. Base pair interactions play a crucial role in the process of DNA replication.
  10. Understanding base pair composition is fundamental for studying genetics and heredity.


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  • Updated 06/04/2024 - 02:54:01