Random changes in allele frequency are due to genetic drift.
Mutation.
In the future,genetic engineering will bring more changes.
Transgenic: This kind of bacteria is formed by transfer of genetic material from another bacteria. The transfer may be natural or by genetic techniques. Mutant: This kind of bacteria is also a modified one at genetic level, but not due to transfer of genetic material from other bacteria or organism, but due to genetic changes in the organism itself. This changes may be due to UV rays or ionising radiations, or other mutantion stimulating agents (mutagens)
Changes that occur slowly over time are given the name evolution.
Changes that are genetic
Mutation can lead to genetic changes over time!
Changes that are genetic
Changes that are genetic
Changes that are genetic
Changes that are genetic
Changes that are genetic
Changes that are genetic
Changes that are genetic
Many genetic changes have contributed to the uniqueness of humans. One example are our opposable thumbs.
Organic evolution.
Genetic drift