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  2. Deletion (genetics) - Wikipedia

    en.wikipedia.org/wiki/Deletion_(genetics)

    Deletion on a chromosome. In genetics, a deletion (also called gene deletion, deficiency, or deletion mutation) (sign: Δ) is a mutation (a genetic aberration) in which a part of a chromosome or a sequence of DNA is left out during DNA replication.

  3. Deletion mapping - Wikipedia

    en.wikipedia.org/wiki/Deletion_mapping

    In genetics and especially genetic engineering, deletion mapping is a technique used to find out the mutation sites within a gene. The principle of deletion mapping involves crossing a strain which has a point mutation in a gene, with multiple strains who each carry a deletion in a different region of the same gene.

  4. Mutation - Wikipedia

    en.wikipedia.org/wiki/Mutation

    A beneficial, or advantageous mutation increases the fitness of the organism. Examples are mutations that lead to antibiotic resistance in bacteria (which are beneficial for bacteria but usually not for humans). A neutral mutation has no harmful or beneficial effect on the organism.

  5. Mutational signatures - Wikipedia

    en.wikipedia.org/wiki/Mutational_signatures

    The 16 possible mutation types of the substitution class C>A are shown as an example. Once the mutation catalog (e.g. counts for each of the 96 mutation types) of a tumor is obtained, there are two approaches to decipher the contributions of different mutational signatures to tumor genomic landscape:

  6. MutS-1 - Wikipedia

    en.wikipedia.org/wiki/MutS-1

    The post-replicative Mismatch Repair System (MMRS) of Escherichia coli involves MutS (Mutator S), MutL and MutH proteins, and acts to correct point mutations or small insertion/deletion loops produced during DNA replication. [1] MutS and MutL are involved in preventing recombination between partially homologous DNA sequences.

  7. Mutagenesis (molecular biology technique) - Wikipedia

    en.wikipedia.org/wiki/Mutagenesis_(molecular...

    Types of mutations that can be introduced by random, site-directed, combinatorial, or insertional mutagenesis. In molecular biology, mutagenesis is an important laboratory technique whereby DNA mutations are deliberately engineered to produce libraries of mutant genes, proteins, strains of bacteria, or other genetically modified organisms. The ...

  8. Indel - Wikipedia

    en.wikipedia.org/wiki/Indel

    For example, a common microindel which results in a frameshift causes Bloom syndrome in the Jewish or Japanese population. [3] Indels can be contrasted with a point mutation . An indel inserts or deletes nucleotides from a sequence, while a point mutation is a form of substitution that replaces one of the nucleotides without changing the ...

  9. T4 rII system - Wikipedia

    en.wikipedia.org/wiki/T4_rII_system

    After Benzer demonstrated the power of the T4 rII system for exploring the fine structure of the gene, others adapted the system to explore related problems.For example, Francis Crick and others used one of the peculiar r mutants Benzer had found (a deletion that fused the A and B cistrons of rII) to demonstrate the triplet nature of the genetic code.

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  1. Related searches deletion vs substitution mutations in bacteria examples worksheet class

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