77401. Synchronous motors run on leading power factor when connected in:
77402. Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms?
77403. The nucleocapsid is covered by an outer membrane like structure called
77404. Which type of interferon is produced by virus-infected cells?
77405. Fluorescence microscopy can be used for the diagnosis of
77406. Viral matrix proteins are
77407. Mumps vaccine is prepared from the cultures of
77408. The microbes which are most likely to be completely dependent on a plant or animal host are
77409. The two major components of viruses are
77410. The transcription of the viral nucleic acid into mRNA is not necessary in case of
77411. West Nile virus can cause a disease in human beings that may be transmitted from an infected bird to a person by a mosquito. This is an example of
77412. What does the positive strand in double stranded RNA viruses stands for?
77413. Which of the following characteristics would not be used to classify viruses?
77414. Interanuclear inclusion bodies are found in cells infected with
77415. The reovirus and influenza virus contain
77416. Which type of interferon is produced by T lymphocytes?
77417. Transfer of infection from cell to cell occurs mainly by direct transfer of virions via
77418. Intracytoplasmic inclusion bodies are found in cells infected with
77419. What is the function of positive strand in double stranded RNA viruses?
77420. Which of the following virus is transmitted by the respiratory route?
77421. The predominant lipid substance found in the viral envelope is
77422. Supercoiling refers to the extra turns in the structure of ds DNA due to the action of
77423. The tissue structure deteriorates as the virus multiplies. This deterioration is called
77424. The structural abnormality of cells is termed as
77425. The penetration of animal viruses into attached cells occur by mechanisms consisting of engulfment of whole virions by the cells in a phagocytic process called
77426. Viropexis takes place in the phagocytic vacuoles and is due to the action of enzymes
77427. Negri bodies are found in cells infected with
77428. The uncontrolled proliferation of cells is termed as
77429. Which of the following virus is transmitted by genital route?
77430. The RNA sarcoma viruses, the most strongly transforming viruses may transform which of the following cells in a culture?
77431. Plant viruses penetrate host cells through transient ores called
77432. Animal viruses with capsids displaying helical symmetry include
77433. Icosahedral viruses are generally
77434. Negative strand ssRNA viruses need to have a preformed replicase when they invade a mammalian cell because they
77435. Which of the following reflects the correct order of events that take place during the multiplication of a virus?
77436. What can be coated to the plastic dish if an ELISA is performed to directly detect polio virus?
77437. The output voltage of a solar cell is approximately:
77438. Slip rings are generally made of:
77439. The hydrometer reading of fully charged lead acid battery:
77440. In induction motor percentage slip is maximum at:
77441. Economiser is a part of:
77442. Which family has received most interest in their development as a biological control agent against insects?
77443. In cancer, the reversion of cells to a more primitive or less differentiated state is called
77444. Which of the following has been linked to Kaposi's sarcoma?
77445. Virulent and nonvirulent viruses may not
77446. The hepadnaviruses such as hepatitis B virus are quite different from other DNA viruses with respect to genome replication. These replicate their DNA using
77447. Which of the following virus is always detectable after infections?
77448. Viroids are composed of
77449. Which of the following is the agent associated with the development of neurodegenerative disease in livestock and humans?
77450. __________is probably the most important characteristic for classification of viruses in eukaryotes.