error

Translocation

...ration in chromosome structure resulting from an error in meiosis or from mutagen s; attachment of a chromosomal fragment to a non homologous chromosome . Full article >>> translocation Moving animals from one location to another, for instance to determine whether and how soon they ...

Progeny

...n the second generation, there is another sampling error based on the new gene frequency , so the frequency of "a" may go from 0.0505 to 0. Full article >>> The mixture of sperm and egg resulted in progeny that were a "blend" of two parents' character istics. Sex cells are known co...

Point Mutation

... Point mutation s The most common type of copying error is the point mutation . In this form of mutation the nucleotide at a site is replaced by a different nucleotide . Full article >>> Point mutation . A change in a single base pair of a DNA sequence in a gene . (See Mutati...

Nondisjunction

... during meiosis or mitosis . The result of this error is a cell with an imbalance of chromosomes . Full article >>> Nondisjunction In biology , nondisjunction is the failure of a chromosome to split correctly during meiosis . Full article >>> Nondisjunction occ...

Inversion

...ration in chromosome structure resulting from an error in meiosis or from mutagen s; reattachment in a reverse orientation of a chromosomal fragment to the chromosome from which the fragment origin ated. invertebrate ... Full article >>> Inversion A DNA rearrangement where a se...

Genotype

...n the second generation, there is another sampling error based on the new gene frequency , so the frequency of "a" may go from 0.0505 to 0. Full article >>> Genotyping will carry on because essentially a way to identify the, portions of the genome that are the most variable and you use th...

Genetic drift

...small population s (not to be mixed with sampling error due to a small sample size). It operates unless overcome by strong selective forces. Full article >>> Genetic drift . Random variation in gene frequency from one generation to another. Genetic engineering . The manipulation of an...

Gene pool

... Genetic drift is caused by a binomial sampling error of the gene pool . In a finite population (as all biological population s are) the gametes contributing to the next generation are a sample of the alleles in the gene pool . Full article >>> This theory conceives of evoluti...

Gene duplication

Gene duplication occurs when an error in DNA replication leads to the duplication of a region of DNA containing a (generally functional) gene . Full article >>> Gene duplication in a diploid organ ism provides a second pair of genes so that one pair can be safe...

Gene

...2;>> Gene duplication occurs when an error in DNA replication leads to the duplication of a region of DNA containing a (generally functional) gene . Full article >>> Gene Regulation Is Necessary By switching genes off when they are not needed, cells can prevent resou...

Frameshift Mutation

... on one strand ), usually through a polymerase error when copying repeated sequence s ... Full article >>> A chemical that can insert itself between the stacked bases at the centre of the DNA double helix , possibly causing a frameshift mutation . A B C D E F G H I J K L M N O P...

Duplication

...2;>> Gene duplication occurs when an error in DNA replication leads to the duplication of...ration in chromosome structure resulting from an error in meiosis or mutagen s; duplication of a portion of a chromosome resulting from fusion with ...

Disjunction

... during meiosis or mitosis . The result of this error is a cell with an imbalance of chromosomes . Full article >>> Non disjunction In biology , non disjunction is the failure of a chromosome to split correctly during meiosis . Full article >>> Non disjunction...

Digestion

...ticle >>> A digestion will give an error (i.e., fragments of unexpected length) when an error has destroyed a restriction site or created a new one from a "near- site " of b- bases whose seq...