Micro Organisms
Which of the following is not true for prokaryotic organism?

Chromosomes does not contain histones
Cell wall contains peptidoglycan as one of the major component
80S ribosomes are distributed in cytoplasm
Nucleus is not bounded by nuclear membrane

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Micro Organisms
Genetic and biochemical similarities between contemporary cyanobacteria and eukaryotic chloroplasts are accepted to mean that

eukaryotes evolved from bacteria
cyanobacteria arose from chloroplasts which escaped from plant cells
eukaryotes evolved from archaea
oxygenic photosynthesis first evolved in eukaryotes

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Micro Organisms
Eukaryotic cell organelles first emerged

from a specialized lineage of cells within the kingdom Protista
when bacteria made their first attempts at reproduction
when prokaryotes engulfed each other and became interdependent
just before the origin of the animal and fungal kingdoms

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