0
Why are mutations in body cells NOT a source of genetic variation?
Wiki User
∙ 13y ago
They happen after the organism has been born, and often lead to tumours and cancer (caused by carcinogens). Other types of mutations can be caused by mutagens, which mutate the DNA of a cell. It doesn't affect the DNA of every cell in the organism/ reproductive cells, so isn't passed on to offspring
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoA mutation in body cells is not a source of genetic variation because the variation was not caused by sexual reproduction. Mutations in body cells also normally aren't passed down.
Add your answer:
Earn +20 pts
Where do you expect genetic differences between cells to arise from mitosis or from meiosis?
That is a good question. In mitosis, you don't get regular genetic variation but chance mutations can occur. In meiosis with fertilization, you get pairing of DNA from different hosts on a regular basis. I would choose the latter.
What is cell mutation?
In prokaryotes cell transformation is an alteration of the cell from the uptake, genomic incorporation, and expression of foreign genetic material.In eukaryotes this is called transfection. Transformation in eukaryotes is reserved to describe an alteration of the cell that results in a tumor cell phenotype.
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. '
Cells in a cell culture all have the same genetic material because they are A. vectors B. plasmids C. hybrids D. clones?
Cells in a cell culture of similar genetic material are called clones. vectors can be the carriers of viruses . Plasmids are the extrachromosomal genetic material. Hybrids are the cells produced from the combination of two cells.
Can mutations that occur in somatic cells be passed on to an organisms offspring?
If the mutation happens in the germ cells, only then it wil be passed on to the offsprings. But, if it happens in some other cell, then it won't be. Such a mutation is Superficial. Like, if we cut the tail of a mouse, no change occurs in the germ cells. So the next generation will still be born with a tail.
How can mutations affect protein synthesis in cells What is the result?
Mutations can be a source of genetic
Does cancer result from genetic mutations-?
Mutating Cells can be a source of Cancer, but not necessarily. All mutating cells do not cause Cancer.
Where do you expect genetic differences between cells to arise from mitosis or from meiosis?
That is a good question. In mitosis, you don't get regular genetic variation but chance mutations can occur. In meiosis with fertilization, you get pairing of DNA from different hosts on a regular basis. I would choose the latter.
Is the only possible source of new genetic material?
mutations recombination/crossing over in mammals
How does mitosis limit genetic variation?
Mitosis is the part of the non sexual cells. These cells do not help reproduce anything with variation. When these cells replicate the replicate in the exact same way, remaining unchanged. this is the reason mitosis limits genetic variation.
Are all mutations passed on to your children?
No, not all mutations are passed on to children. Mutations can occur in the DNA of reproductive cells (eggs and sperm) and if they are present in those cells, they can be passed on to the next generation. However, most mutations occur in non-reproductive cells and are not passed on to offspring.
What kind of cells will a change in the genetic code be passed on?
Mutations in the genetic code that can be passed on to offspring occur in the gametes; the sperm and egg cells.
Why is nuclear radiation dangerous to human being'S?
Nuclear radiation can cause genetic mutations in our DNA, which can cause cancers. If the genetic mutations occur in the germ cells, then our gametes (sperm and egg cells) could have genetic mutations that could be passed on to our offspring. Also, if radiation levels are high enough, people can get radiation sickness, which can be fatal.
Do bacteria genetic material change?
Bacteria cells have their own genetic material.
How would drugs affect the genetic variation of the cells?
it would get them high
Is the genetic makeup of daughter cells unique or identical to other cells in the organism during mitosis?
the genetic makeup SHOULD be identical. some mutations can occur so they are not completely identical but these mutations are soo minute that they are often disregarded.
Body cell mutations cannot be passed on to offspring. This is because body cells do not contribute genetic material to?
sex cells
