Which of these statements is true?
an antibiotic is any substance produced by a organism that is antagonistic to the growth of prokaryotes.
an antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of other viruses.
an antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of eukaryotic cells.
an antibiotic is any substance produced by a prokaryote that prevents growth of the same prokaryote.

An antibiotic is any substance produced by a organism that is antagonistic to the growth of prokaryotes.

Explanation:

Antibiotics can be defined as natural compounds - when produced by fungi or bacteria - or synthetic compounds capable of interfering with bacterial growth or causing the death of these beings. In either case, antibiotics can be defined as any substance produced by an organism that is antagonistic to prokaryote growth.  When they cause bacteria to die, they are called bactericides, but when they only inhibit their growth, they are called bacteriostats.

after making a punnet square using bv bv bv bv you will find that the ratio will be 9: 7 or a 128.6% probability.

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as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.