The right answer is Scientists should conduct long-term studies of DNA technology to determine the consequences.
DDT is a potent insecticide: it kills by opening the sodium channels of insect neurons, destroying them instantly, leading to spasms and then death. Some genetic mutations acting on the sodium channels can make some insects resistant to DDT and other insecticides working on the same principle.
The US Environmental Protection Agency has categorized DDT into the B2 class, that is, potential carcinogen for humans. This supports the fact that the insecticide acts on human DNA.
Answer:
c. break the N2 triple bond.
Explanation:
In the general nitrogen reduction reaction (which occurs in the nitrogenase complex), ferredoxin acts as an electron donor to Fe-protein, which in turn hydrolyzes ATP and reduces MoFe-protein. By reducing MoFe-protein one can then reduce numerous (triple bonded) substrates although, under natural conditions, it reacts only to N2 and H +.
That is, ATP must be present in the reaction so that MoFe-protein can break the triple bond N2.
The binding and hydrolysis of ATP to Fe-protein causes a change in conformation of this protein which facilitates redox reactions. The enzymatic reduction of N2 by nitrogenase requires a large energy investment, although the exact changes in free energy are still unknown.
Depending on how good that species is at adapting to new environments that species of animals could adapt overtime, or die
One kind of rock forms when other types of rock are changed due to extreme high temperatures is "metamorphic".
<u>Explanation:
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Rock cycle stands as geology's fundamental notion. This denotes transitions occurred in three primary rock kinds as: igneous, metamorphic, and sedimentary. When extreme increased temperature and pressures are exposed on rocks then a new kind of rock is formed after chemical and physical reformation named as "metamorphic".
Basically there are two major metamorphism: regional and contact. Population of rocks are resulted from regional or dynamo thermal metamorphism. They were highly exposed to tectonic forces and related with high temperatures and pressures. Each type of rock is altered by being pulled out of its conditions of equilibrium.
Answer:
mitochondria and chloroplasts
Explanation:
the theory says that the bacteria which used oxygen and changed it to ATP molecules changed into mitochondria and those that used light energy to manufacture their own food changed into chloroplasts.this happened after the small prokaryotes which were bacteria were engulfed by the bigger prokaryotes of which some managed to survive and lived together through symbiosis hence the evolution to mitochondria and chloroplasts creating a eukaryotic cell.
