Ref: online search (Changes to short stretches of nucleotides are called gene-level mutations, because these mutations affect the specific genes that provide instructions for various functional molecules, including proteins. Changes in these molecules can have an impact on any number of an organism's physical characteristics.)
Answer:
mitochondria produces energy in the form of ATP molecules
Answer:
"In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure"
Explanation: I just looked it up-
Answer:
The properties and structure of the bacteria is different so each of them would react differently. The antibiotic might help one of the bacteria while eliminating the other in the process.
(please tell me if im wrong)
(also, its nice seeing a genshin fan :)