Chromosomes in a bacterial cell can be 1 —3 in number and
are always circular
are always linear
can he either circular or linear, but never both within the same cell
can be circular as well as linear within the same cell
Some bacteria are able to grow in Streptomycin containing medium due to
natural selection
induced mutation
reproductive isolation
genetic drift.
What is true for archaebacteria
all are halophils
all are photosynthetics
all are fossils
oldest living beings.
Difference in gram positive and gram negative bacteria is due to
cell wall
cell membrane
ribosome
cytoplasm.
