Which of the following is not true for eukaryotic cells?
Nucleus is bounded by nuclear membrane
Chromosomes contain histones
Chloroplasts and mitochondria contains 70S ribosomes
Gas vacuoles are present
Correct answer is D
No explanation has been provided for this answer.
Comparisons of nucleotide sequences
Comparisons of biochemical pathways
Comparisons of structural features
All of the above
Correct answer is D
No explanation has been provided for this answer.
Mycoplasmas are different from the other prokaryotes by
presence of chitin in cell walls
presence of murrain in cell walls
presence of proteins in cell walls
absence of cell wall itself
Correct answer is D
No explanation has been provided for this answer.
The unifying feature of the archaea that distinguishes them from the bacteria is
habitats which are extreme environments with regard to acidity
absence of a nuclear membrane temperature
presence of a cell wall containing a characteristic outer membrane
cytoplasmic ribosomes that are 70S
Correct answer is B
No explanation has been provided for this answer.
Which were the investigators who lived at the same time?
Koch and Pasteur
Darwin and Woese
Van Leeuenhoek and Ricketts
Berg and Hooke
Correct answer is A
No explanation has been provided for this answer.