In eukaryotic cells, DNA is found principally in the nucleus, but it also occurs in ____ and in ____.
A) ribosomes; mitochondria
B) mitochondria; chloroplasts
C) chloroplasts; peroxisomes
D) peroxisomes; vacuoles
E) vacuoles; mitochondria

Question

Quizplus · Accepted Answer

DNA is found in both the mitochondria and chloroplasts of eukaryotic cells. This is because these organelles are believed to have evolved from free-living prokaryotic organisms that were engulfed by ancestral eukaryotic cells. As a result, they have their own DNA that is separate from the nuclear DNA. The other choices are incorrect because they do not contain their own DNA.

In Eukaryotic Cells, DNA Is Found Principally in the Nucleus