Question

In a plant cell, DNA may be found

A) only in the nucleus.
B) only in the nucleus and mitochondria.
C) only in the nucleus and chloroplasts.
D) in the nucleus, mitochondria, and chloroplasts.
E) in the nucleus, mitochondria, chloroplasts, and peroxisomes.

Answer 1

In a plant cell, DNA is found in the nucleus, mitochondria, and chloroplasts. Each of these organelles contains its distinctive DNA, which contributes to their specific functions within the cell.

Step-by-step explanation:

In a plant cell, DNA can be found in the nucleus, mitochondria, and chloroplasts. The nucleus is the primary location of most genetic material in the cell, containing the chromosomes with genes that regulate cell activities and gene expression. Mitochondria, identified for their role in energy production, and chloroplasts, essential for photosynthesis, both contain their own unique DNA, which is similar to circular DNA found in bacteria. These extrachromosomal DNA locations enable mitochondria and chloroplasts to partly direct their own protein synthesis independently of the nuclear DNA.