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Although genetic mutations may occur spontaneously in organisms the incidence of such mutations may be increased by?
Wiki User
∙ 13y ago
Radioactive substances in the environment
Wiki User
∙ 13y ago
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The mutations that breeders induce in organisms are passed on to the organisms?
offspring
How do the Redi Spallanzani and Pasteur experiments disprove the hypothesis?
they didnt
What causes variation in human beings?
the variations in genes, genes of sexually reproducing organisms will vary due to crossing-over of genes, mutations, and adaptations. In asexually reproducing organisms genes will vary through adaptations and mutations.
What are the occasional mistakes in copying DNA called and why are they significant for evolutionary change?
Mutations. They, when beneficial, provide variations of organisms genomes for natural selection. Beneficial mutations may confer a slight reproductive advantage to the organism so that genes " promoted " into the next generation change the allele frequency of the population causing evolution.
What causes mutations in bacteria?
Pretty much the same process that causes mutations in any organism. The replication of the genetic code is not perfect and copying mistakes are made where one bases is substituted for another, or a whole string of bases is shifted in a frame shift. Google ' mutation. '
The mutations that breeders induce in organisms are passed on to the organisms?
offspring
Is 'mutations are beneficial to organisms' a true statement about mutations?
Usually mutations have deleterious effects to the organism, but occasionally there are beneficial mutations. Such mutations drive evolution.
Can mutations add information in organisms?
mutations in dna can be advantageous and lead to charecteristics that help a person survive or increase it chances of survival.
A sudden permanent change in a organisms dna called?
Gene
What is the define of mutagen?
An external agent that increases the rate of mutations of cells or organisms.
Do all organisms follow the rules of genetics?
Yes they do. There are, of course, occasional mutations.
Are all mutation detrimental?
Certainly not, some mutations create novelty in the organisms.
Are most of the fruits and vegetables you get at a supermarket the product of accidental mutations?
Every life form is probably the product of accidental mutations! Nowadays mutations are not necessarily accidental--they are called genetically modified organisms (GMOs).
How do the Redi Spallanzani and Pasteur experiments disprove the hypothesis?
they didnt
Which scientist Showed that organisms grow spontaneously in beef broth?
Louis Pasteur
How can embryology show that organisms are related?
It can be a good indication because mutations affecting embryos are especially detrimental, and so such mutations accumulate less over time.
Are mutations still occurring in organisms in modern times?
Yes. Mutations are random copying errors much of the time and that never stops because replication is not perfect.
