Any sudden change in the genetic material is known as MUTATION.Mutation may occure at GENE LEVEL or CHROMOSOMAL LEVEL.
TYPES:
A gene variant is a permanent change in the DNA sequence that makes up a gene. This type of genetic change used to be known as a gene mutation, but because changes in DNA do not always cause disease, it is thought that gene variant is a more accurate term. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.
Mutations are changes in an organism's DNA that potentially affect the correct functioning of genes.They occur naturally due to replication errors, mispairing of homologous chromosomes, or through unavoidable exposure to natural radiation (e.g., cosmic rays). Mutations can occur anywhere in the DNA and in any cell
Mutation are sudden heritable changes which give rise to new alternative form of genes i.e gives rise to a new novel phenotype which is somewhat different from genetic recombination. Mutation can be sponataneous or induced .
1. Spontaneous mutation are those which occur in the absence of a exogeneous substance often called as mutagen causes of spontaneous mutation are error in Dna replication,transposition,spontaneous lesions(deamination).
2.Induced mutation are one which are the result of exogeneous substance called mutagen such as ionic radiations,intercalltaing agent,oxidizing agents etc.
When a strand of DNA doesn't copy itself exactly.
A mutation is a change in a species over time and mutations are random among different animals and are chosen by natural selection
diseases like Down syndrome. This disease has a third chromosome on the 21 thing (sorry i don't know what its called).
Mutations result in changes in the nucleotide sequence of a gene. Diseases like Cancer and Immunodificiency can be caused by mutations
Usually mutations have deleterious effects to the organism, but occasionally there are beneficial mutations. Such mutations drive evolution.
Mutation
for Plato it isn't A or B the answer is D
You might be referring to point mutation. This is when one nucleotide in a gene is changed and causes many irregularities in the cell.
either new organisms entered the population from an external source, or there were mutations
1.)Mutations can be inherited. This means if a parent has a mutation in his/her DNA, then the mutation is passed on to the child.2.)Mutations can be acquired. This happens when a mistake accurs when a cell copies its DNA.3.)Mutations can occur by a hidden gene. This happens when your ancestor(for example, "grandma") has the mutation and that mutation is passed on to every other girl(for example), then the girl will get the mutation.
A mutagen is a substance that CAUSES a mutation. Essentially, mutagens are the cause, mutations are the effect. Simple as that :)
Usually mutations have deleterious effects to the organism, but occasionally there are beneficial mutations. Such mutations drive evolution.
Such mutations are called point mutation or gene mutation.
Mutation
your mom is what causes the answer, Frameshift mutation.
the answer is mutations.......................
for Plato it isn't A or B the answer is D
mutations
You might be referring to point mutation. This is when one nucleotide in a gene is changed and causes many irregularities in the cell.
Some mutations produce new traits that can help an organism survive.
In the base sequence of the DNA part of the DNA changes which causes a change in the whole DNA which is called a mutation.