89652. Which of the following is considered the most unifying concept in biology?
89653. Various bacterial species can be subdivided into
89654. Living organisms have many complex characteristics. Which one of the following is shared by non-living matter as well?
89655. A newly discovered microscopic structure is hypothesized to be a living organism. Which of the following lines of evidence would support the contention that this organism may be alive?
89656. Mycoplasmas, rickettsiae, and chlamydiae are
89657. Which of the following structure is absent in eukaryotic cells?
89658. Who was the inventor of the Petri dish?
89659. Which one is not studied in microbiology?
89660. A characteristic of protein synthesis in both the archaea and eukarya is
89661. Cell theory includes all of the following except
89662. The five-kingdom system of classification was set up by
89663. The membranes of which domains are chemically the most similar?
89664. Primary differences between cilia and flagella are
89665. All membranes of free-living organisms have phospholipid bilayers, but exception is
89666. All of the following are features of prokaryotes except
89667. Which of the following structures is the smallest?
89668. Which of the following is/are included in Kingdom Prokaryotae?
89669. Which of the following may account for the small size of the cells?
89670. Genetic and biochemical similarities between contemporary cyanobacteria and eukaryotic chloroplasts are accepted to mean that
89671. Which of the following best represents the hierarchy of levels of biological classification?
89672. The three domain version of life on earth is based on the
89673. The foundation for the germ theory of disease was set down by
89674. Most microbial structures and enzymes are composed of
89675. The individual best remembered for bringing microbes to the world is
89676. Micro organisms are found in which of the following kingdom of five kingdom concept (Whittaker's classification)?
89677. The first organism in most natural food chains is
89678. The third kingdom, protista, as suggested by E.H. Haeckel includes
89679. Eukaryotic cell organelles first emerged
89680. Who discovered the bacteria that cause cholera?
89681. Prokaryotic microorganism include
89682. All the following are basic properties of cells except
89683. Which of the following microorganisms is classified as a member of archaebacteria?
89684. The idea of selective toxicity was first proposed by
89685. Which of the following sequences has helped in identifying eukaryotes, eubacteria and archeabacterial cell types?
89686. Archeal cells usually do not contain peptidoglycan, rather contain pseudo-peptidoglycan which is mainly composed of
89687. In the three domain system of classification, the traditional bacteria are placed in the
89688. One of the reasons for the evolutionary success of the kingdom Monera is that its members are nutritionally diverse. Which of the following(s) is/are the way(s) of obtaining energy?
89689. Carl Woese and his colleague are best known for establishing
89690. Which of the following is not found in the kingdom Monera?
89691. Which of the following is the most primitive?
89692. All the following are considered eukaryotes except
89693. Which cell type is considered to have the oldest ancestor?
89694. What is Mycology?
89695. Which of the following organelles contain DNA, divides and possesses some degree of autonomy?
89696. All of the following individuals contributed to cell theory except
89697. Eukaryotic micro organisms include
89698. The binomial name of a microbe is composed of
89699. Which of the following is a characteristic unique to the ciliates?
89700. Which of the following structure is present in prokaryotic cells?
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