Introns because they are coding sequences.
Exons because they are non-coding sequences.
Answer:
either B or D because at the end Whilst the ultimate outcome of the lytic cycle is production of new phage progeny and death of the host bacterial cell, this is a multistep process involving precise coordination of gene transcription and physical processes.
It is carried on the X chromosome.
Taking this test on Gradpoint, hope I helped.
Um D? A fold?? If its right mark as brainleist please