Many herbicides and pesticides hit the nuclear material and cause mutations when used to protect crop plants. Apart from causing mutations these very chemicals are carcinogenic in nature and cause cancer.
Yes. Mutagenic agents cause mutations in DNA. If those mutations occur in cell growth genes, this can lead to a cancerous cell that can grow and spread out of control. I work in a lab and many of the chemicals I work with are described as Carcinogens, chemicals that are known to directly cause cancer. many mutagenic agents are also carcinogens.
More males than females smoke cigarettes, chew tobacco, smoke pipes, and use snuff. All of those things can cause oral cancer, and some can also cause lung cancer.
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the mitochondrial mutations effect to those cells which have maternal inherritance character and the mutation is called poky mutation
In an organism, a genetic code is made by the cells, but in that genetic sequence, if one or more letters are change, replaced, or deleted, then those cause mutations in the organism In an organism, a genetic code is made by the cells, but in that genetic sequence, if one or more letters are change, replaced, or deleted, then those cause mutations in the organism
Sure, you probably have several tens of thousands of mutations already and are likely accumulating a couple more mutations every single day you live.Many mutations are harmless and of those that are very harmful they usually cause death of that one cell in which they occurred then the cell is replaced with a normal one. If the mutated cell doesn't die the immune system may identify it as "bad" and kill it, then the cell is replaced with a normal one.Also sometimes a mutation in the sex cells (which won't affect that person at all, only their children) is a helpful improvement. Evolution can select such changes (and other ways the genes change) over following generations, thus possibly improving the population.It is not possible for a mutation to completely transform an individual into something different. Although mutations can cause cancer if they don't kill the cell and the immune system overlooks the "bad" cell, but to become cancer typically takes multiple mutations (not just one) and often decades for the one cell to divide enough to become a tumor.
Pelvic inflammatory disease does not cause cancer. Having multiple sex partners is a risk for both cervical cancer and pelvic inflammatory disease, but even those who aren't sexually active can get PID.
At the time that Darwin published his work the theory of genetic transfer of characteristics by Gregor Mendel had not been published. As a consequence genetic theory, mutations, recessive characteristics and allof those issues would be unknown.
Yes, there certainly is a heredity factor with Crohns disease. Many studies have shown that those families with prior members affected will have as much as a 20% higher risk of seeing it in the same family.
Carcinogens, but more specifically: petrochemicals - such as those within cosmetics.
X-rays and UV rays can both cause genetic mutations in humans. Also, exposure to certain chemicals, like those in tobacco. A certain amount of mutations also occur all the time, regardless of your exposure to harmful agents like these, due to the built in error-rate when DNA is copied.
can either have no effect, alter the product of a gene, or prevent the gene from functioning properly or completely