Dna extraction is a useful technique for scientists because it can be used a. to see the nuclei of cells b. to absorb viruses c. to verify a person’s personality d. to determine if people are related

DNA comprises the genetic makeup of every organism. It carries genetic information that is used by the organs in the body to determine what functions to carry out.

DNA cannot be used to see the nuclei of cells or absorb viruses. A person's personality cannot be determined from DNA.

The answer is D. to determine if people are related, as DNA between two people can be compared for similarities of code between the two.

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

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