Answer:
All of the options listed may be present as part of the prokaryotic genome.
A. Plasmids are small, circular pieces of DNA that exist independently of the chromosomal DNA in some bacteria. They often carry non-essential genes that may provide selective advantages to the host bacterium, such as antibiotic resistance.
B. Prophages are integrated phages (viruses that infect bacteria) that exist within the chromosome of a bacterial cell. They can become active and replicate, causing harm to the host cell, under certain conditions.
C. Chromosomes are large, circular pieces of DNA that contain the majority of a prokaryotic cell's genetic material.
D. RNA is an essential part of the prokaryotic genome as it plays a central role in gene expression, including transcription and translation. Some RNA molecules, such as ribosomal RNA (rRNA), are even part of the physical structure of the prokaryotic ribosome.
Step-by-step explanation: