when a pcr amplification was performed on human genomic dna, multiple products of varying sizes were obtained, including one of the expected size. which of the following modifications to the protocol is most likely to eliminate the extra pcr products.

-efficient data acquisition

-medical data processing

-data analysis for research

-voice recognition systems

the answer would be 3

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers