Answer:
Mutation
Explanation:
Mutation is the process whereby some organisms possessed some characteristics that make them to be resistance to certain stimuli.
In this case,some bacteria have become resistance to chemicals or drugs to the possession of some things or features during development. These things make them different from other strains of that same bacteria.
Explanation:
Identical twins may have less in common than they think. A study now shows that the expression of their genes gets more and more different with age.
The findings could help to explain why one twin may develop a genetically influenced disease, such as diabetes, while the other remains perfectly healthy.
Identical twins have identical genes, because they are born of an embryo that splits at a very early stage in development. Such twins are often indistinguishable in outward appearance. But over the course of time they may experience radically dissimilar health.
Most scientists have assumed that environmental and lifestyle differences cause such divergence. These things trigger chemical reactions that affect our DNA and the proteins entwined with our DNA, called histones. One such reaction, known as methylation, influences the expression of genes and so can have an impact on health.
No, because of the mass amount of fossil fuels used during the Industrial Revolution.
1. Gene- a portion of DNA which codes a specific hereditary trait
2. Allele- alternate forms of a specific gene
3. Trait- A genetic characteristic of the individual
4. Chromosome - a thread-like molecule....
Yes it is an example of friction.Also a sled sliding across the snow or ice
