Dolphins produce a variety of vocalizations, usually in the form of clicks and whistles. Dolphins are sometimes hunted in places like Japan, in an activity known as dolphin drive hunting. Besides drive hunting, they also face threats from bycatch, habitat loss, and marine pollution.
The DNA sequence of a gene can be altered in a number of ways. Gene mutations have varying effects on health, depending on where they occur and whether they alter the function of essential proteins. The types of mutations include:his type of mutation is a change in one DNA base pair that results in the substitution of one amino acid for another in the protein made by a gene.
Confidence votes 102. Genetic modification is when you take a beneficial gene, a bit of DNA, from one species and add it to the DNA sequence of another species. The genetically modified subject will use the gene and benefit from it, for example to grow better fruit or be resistant to disease, or to produce insulin.onfidence votes 102. Genetic modification is when you take a beneficial gene, a bit of DNA, from one species and add it to the DNA sequence of another species. The genetically modified subject will use the gene and benefit from it, for example to grow better fruit or be resistant to disease, or to produce insulin.