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Why does mutations may or may not affect the expression of a gene?
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What can plant hormones be characterized by?
They may act by altering gene expression. They have a multiplicity of effects. They control plant growth and development and they affect division, elongation and differentiation of cells.
Can some DNA mutations be beneficial to an organism?
Gene mutations may have positive or negative effects. Without "positive" gene mutations, a species would not be able to improve itself over time, in order to make it more it more adaptable to its environment. "Negative" gene mutations, by their very nature and definition, tend not to be able to survive in their environment.
Is it true that only mutations in gametes can be passed from parent to offspring?
Gametic mutations occur in the cells of the gonads (which produce sperm and eggs) and may be inherited. There are two types of mutations that can occur in gamete cells: 1. Gene Mutations 2. Chromosomal Mutations
How do people get sporadic prion disease?
Patients with sporadic prion diseases may have a susceptibility polymorphism in their PRNP gene, and may have spontaneous mutations forming prion proteins.
How can mutations in the same gene cause different types of cancer?
You may find your answer in the following articles: http://www.thaindian.com/newsportal/health/how-gene-mutation-causes-breast-cancer-discovered_1008319.html http://www.medicalnewstoday.com/articles/64804.php
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.
Would all mutations to DNA happen to a gene?
all mutations in terms of DNA happen in a gene. here it has to be noted that a gene is made up of two strands of nucleotides which are made up of amino acids. when mutations occur the sequence of nucleotides may change. sometimes a nucleotide may become missing hence the sequence of the strands change. mutations can be harmful but also very beneficial.
Can mutations be passed from parent to offspring How?
Yes mutations can be passed from parent to offspring. If a parent has a certain gene that is mutated then there is a possibility that the child may inherit it.
How does a mutation in a sex cell differ from a mutation in a non-sex cell?
Mutations in sex cells can be passed on to children. Mutations in sex cells only affect offspring. Mutations in sex cells do not affect the organism.
Do all mutations affect the protein results?
No. Point mutations may have no effect on the protein, however, they can also be very harmful.
What can plant hormones be characterized by?
They may act by altering gene expression. They have a multiplicity of effects. They control plant growth and development and they affect division, elongation and differentiation of cells.
Can some DNA mutations be beneficial to an organism?
Gene mutations may have positive or negative effects. Without "positive" gene mutations, a species would not be able to improve itself over time, in order to make it more it more adaptable to its environment. "Negative" gene mutations, by their very nature and definition, tend not to be able to survive in their environment.
Does a mutation in a gene affect the order of DNA bases?
A mutation in a gene can happen by addition, deletion or substitution of base pairs. This means that the order of the bases will change- a new base may be added, a base may be lost, or one base may be substituted for another. The result of these mutations is that it causes the DNA to code for a different protein. If a mutation occurs in a sex cell, the mutation can be passed on to an offspring and affect the offspring's phenotype.
How does mutation in a gene affect order in DNA bases?
A mutation in a gene can happen by addition, deletion or substitution of base pairs. This means that the order of the bases will change- a new base may be added, a base may be lost, or one base may be substituted for another. The result of these mutations is that it causes the DNA to code for a different protein. If a mutation occurs in a sex cell, the mutation can be passed on to an offspring and affect the offspring's phenotype.
How are substitution mutations caused?
A substitution mutation in genetics is where one of the nucleotide bases of DNA is swapped for another. These mutations may or may not affect the protein that is being coded.
Is it true that only mutations in gametes can be passed from parent to offspring?
Gametic mutations occur in the cells of the gonads (which produce sperm and eggs) and may be inherited. There are two types of mutations that can occur in gamete cells: 1. Gene Mutations 2. Chromosomal Mutations
Do living things evolve because of mutations of their DNA?
Mutations usually cause things to evolve, depending on the gene which is mutated. Mutations are changes in the genetic material of an organism resulting in changes in the gene pool (if the mutated traits are passed on). If the mutated gene is a desirable/advantageous one, then the chances that it willbe passed on to future generations is increased. In this process, which occurs over a period of time, old genes may be lost in the gene pool, resulting in evolution.I don't see how it doesn't cause evolution.
