Which of the following statements about DNA in the human body is TRUE?
A) The DNA in every cell of the body is the same, except in the case of some acquired mutations.
B) Altered genes guarantee that a person will develop a genetic disease.
C) DNA differs from cell to cell in humans.
D) One person's DNA is more than 50% different than another person's DNA.
E) All of the above statements are true.

Question

Quizplus · Accepted Answer

The DNA in every cell of the human body is essentially the same, with the exception of some cells that may acquire mutations over a person's lifetime. This foundational principle is crucial for understanding genetics and the development of an organism from a single cell. Other options are incorrect: B) Not all altered genes guarantee the development of a genetic disease, as the outcome can depend on various factors including the presence of other genes and environmental influences. C) DNA does not differ from cell to cell in a significant way, except for the mentioned mutations or in specialized cases like immune cells. D) The genetic difference between any two humans is actually quite small, with studies showing that the genomes of two unrelated individuals are more than 99% identical.

Which of the Following Statements About DNA in the Human