Micro Organisms
Which of the following is not true for eukaryotic cells?

Chromosomes contain histones
Gas vacuoles are present
Nucleus is bounded by nuclear membrane
Chloroplasts and mitochondria contains 70S ribosomes

ANSWER DOWNLOAD EXAMIANS APP

Micro Organisms
Eukaryotic cell organelles first emerged

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

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP