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A mutation is a change in the genetic code of one allele of your genetic code. ( rarely does mutation affect both alleles ) Most mutations are neutral, some are deleterious, but sometimes a mutation in the germ line can convey some slight advantage to progeny. An example of this is lactose tolerance in some peoples of the world.
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∙ 12y ago
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∙ 12y agoIf a mutation allows an individual to survive better in its environment it will begin to breed with in its species and if the mutation is a dominant gene more individuals will develop it creating variation.
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∙ 13y agoApart from advantageous mutations, which make a population better adapted to its environment, gene mutations add to the genetic diversity of a population. While most mutations are neutral with respect to a given environment, (followed in number by deleterious mutations and then advantageous mutations), changes in the environment can redefine whether a mutation is neutral, deleterious or advantageous. Previously neutral mutations may become advantageous, allowing a species to cope better with the environmental change.
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∙ 11y agoThe mutation, depending on if it is recessive or dominant, can be passed throughout the population from generation to generation. If it is dominant, anyone who reproduces with the individual(s) will have offspring who express the mutation in their phenotype, and same with their children, and so forth. If it is recessive, the mutation has a much lower chance of being expressed and/or passed on through generations.
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∙ 15y agomutations to a gene pool can cause a diversity in a species or population.
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∙ 13y agoMutations can cause variations in a population.
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∙ 11y agoIf you shove a big pile of dog dookie in your bum you get hemroids which can eventually cause you to crap dog babies
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∙ 11y agoIt's analogous to shuffling a few parts of a deck of cards. The order in which those cards will be organised will be changed.
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∙ 14y agogenetic variation
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∙ 12y agogenetic diversity
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Which type of mutations contribute to evolution?
Mutation is one of the mechanism by which new alleles enter the population gene pool. Evolution is often defined as the changing of allele frequencies in population gene pools. A mutation could change the frequency of a particular allele from zero to non-zero.
The combined alleles of all the individuals in a population is what?
The entire collection of genes among a population is called the "gene pool".
What causes the allele frequencies to changes?
1. Mutation 2. Migration (Gene Flow): both immigration and emigration. 3. Genetic Drift 4. Sexual Selection (Non-random mating) 5. Natural Selection: those most fit survive to pass on their genes to the next generation.
What are types of point mutation?
The types of point mutations are: base-pair substitution, insertions, deletions, and frameshift mutations. In base-pair substitution, one nucleotide and its corresponding partner are replaced with another pair of nucleotide. In insertion, nucleotide pairs are added to a gene. In deletion, nucleotide pairs are taken out of a gene. Frameshift mutation happens as a result of insertion or deletion when more or less than three (or a multiple of three) nucleotide pairs are added to or taken from a gene.
Are mutations in the DNA sequence gene transient changes?
Successful mutations will persist. Mutations usually occur during replication. Some mutations will flourish depending on environmental factors.
What happens to any population when its small and isolated from gene flow?
Mutations
What are some sources of variation in a population?
variations in a population can be due to sexual reproduction, gene mutations, etc
How molecular mechanisms can introduce variatian into the gene pool of plant or animal population?
Mutations in the DNA code can introduce variation into the gene pool of a population.
How does gene flow affect the fitness of population?
Gene flow within a population distributes mutations among the individuals. Immigration and emigration transport alleles into and out of a population's gene pool, thus affecting the result of natural selection.
What is the cause of improper functions of a gene?
gene mutations
What is driver mutation?
The mutations that confer a selective growth advantage to the tumor cell are called “driver” mutations. It has been estimated. A driver gene is one that contains driver gene mutations. But driver genes may also contain passenger gene mutations A typical tumor contains two to eight of these "driver gene" mutations; the remaining mutations are passengers that confer no selective growth advantage.
What can changes in a gene do to a cell?
mutations
What can change in a gene do to a cell?
mutations
Does gene flow spread advantageous mutations?
Yes but it could also spread deleterious mutations. It depends on the size of the gene pool.
How can new mutations be added to a gene pool?
Mutations are added to a gene pool when a mutation (completely random) occurs in a person. They will pass this gene on to their offspring (and so on, and so forth).
What are mutations that occur at a single point?
Such mutations are called point mutation or gene mutation.
What can occur for limited gene flow?
Mutations can occur in gene processing errors.
