Skip to main content

Mutations and Polymorphisms: What Is The Difference?

  • Chapter
  • First Online:
Genetic Polymorphism and cancer susceptibility

Abstract

The human genome exhibits a dynamic but limited variation between different individuals and across different geographical and/or racial/ethnical populations which accounts for only 0.1–0.4% of the total genomic DNA or genome. These genetic variations are generally described in terms of mutation and genetic polymorphism. Mutation is defined as the irreversible sequence variation in the DNA which essentiality encompasses all types of variations occurring in the human genome spontaneously or non-spontaneously. Genetic polymorphism which is the most common and dynamic form of genetic variation present throughout the human genome is defined as the presence of two or more alternative forms of an allele in the genome of any individual, which results in distinct phenotypes in the same population. Genetic polymorphism represents most of the variations present in the human genome and includes four different annotated types, viz. single nucleotide polymorphisms (SNPs), copy number variants (CNVs), insertions or deletions (indels), and structural variants. Of these, single nucleotide polymorphisms (SNPs), which involve the substitution of a single nucleotide by another nucleotide at a specific location within the genome, account for more than 90% of all the human genetic variations and thus constitute an important aspect of genetic variation exhibited by the human genome.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Abbreviations

ACE:

Angiotensin-converting enzyme

CNPs:

Copy number polymorphisms

CNVs:

Copy number variants

DNA:

Deoxyribo nucleic acid

GP:

Genetic polymorphisms

GPC:

Genome project consortium

GVs:

Genetic variations

GWAS:

Genome wide association studies

HGP:

Human genome project

Indels:

Insertions or deletions

ISVs:

Intermediate-sized variants

lncRNAs:

Long noncoding RNAs

LCVs:

Large-scale copy number variants

mCNVs:

Multi-allelic copy number variants

MEIs:

Mobile element insertions

miRNA:

MicroRNA

NUMTs:

Nuclear mitochondrial sequences

SNP:

Single nucleotide polymorphism

UTR:

Untranslated regions

References

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Aga Syed Sameer .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2021 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

Cite this chapter

Sameer, A.S., Banday, M.Z., Nissar, S. (2021). Mutations and Polymorphisms: What Is The Difference?. In: Sameer, A.S., Banday, M.Z., Nissar, S. (eds) Genetic Polymorphism and cancer susceptibility. Springer, Singapore. https://doi.org/10.1007/978-981-33-6699-2_1

Download citation

Publish with us

Policies and ethics