DNA nucleotide mutation

A single DNA nucleotide undergoes a "point" mutation, changing an A to a T.

dna nucleotide,point mutation,evolution

  • ID: 15617
  • Source: DNALC.DNAi

Related Content

16587. Concept 27: Mutations are changes in genetic information.

Some mutations are starting points for evolution, others are responsible for disease.

  • ID: 16587
  • Source: DNAFTB

15557. Single nucleotide polymorphisms (SNPs)

An image of a family tree depicting the occurance of single nucleotide polymorphisms.

  • ID: 15557
  • Source: DNAi

15980. Accumulating mutations

Mutations are the grist of evolution, and have accumulated in our DNA over time. When populations separate, each group accumulates their own unique set of DNA mutations.

  • ID: 15980
  • Source: DNAi

15608. Human/Neandertal/Chimp mutation evoluton tree

Mutations in our DNA can be used to trace the relationships between different populations and species.

  • ID: 15608
  • Source: DNAi

15168. Accumulating DNA mutations through time, Mark Stoneking

Geneticist Mark Stoneking talks about the difficulties of measuring time by mutations.

  • ID: 15168
  • Source: DNAi

16611. Problem 27: Mutations are changes in genetic information.

Use mutations to measure human evolution.

  • ID: 16611
  • Source: DNALC.DNAFTB

15618. mutation family tree

A hypothetical family tree useing color to illustrate different lineages. At each colored branching point, one lineage has accumulated a new mutation. The black line indicates modern times.

  • ID: 15618
  • Source: DNAi

16588. Animation 27: Mutations are changes in genetic information.

Herman Muller induces fruit fly mutations. Seymour Benzer works with virus mutants ans proved only one nucleotide change can cause mutation.

  • ID: 16588
  • Source: DNALC.DNAFTB

15682. DNA nucleotides

DNA nucleotides (black letter tiles) matched in groups of two to amino acids (red letter tiles).

  • ID: 15682
  • Source: DNAi

15977. Maternal inheritance

Unlike nuclear DNA, mtDNA is  inherited solely from the mother. (Mitochondria are predominantly from the mother’s egg and not from the father’s sperm.) Therefore, mtDNA sequences or orders of nucleotides generally remain constant over many generation

  • ID: 15977
  • Source: DNAi