76501. Which of the following species is used for vitamin B12 production by fermentation process?
76502. Malt used to ferment beer is prepared by
76503. Penicillin was first produced commercially using
76504. The present day high yielding penicillin are obtained from
76505. The medium utilized for fungal citric acid production should be deficient in
76506. Which of the following are commercially used for bacterial amylases production?
76507. An "International Unit" of penicillin activity established in 1944 is amount of penicillin equivalent to
76508. The man who first discovered the chemical that causes souring of milk was
76509. Which of the following is not a penicillin?
76510. Which of the following is a cephalosporin?
76511. Cephalosporin an antibiotic closely related to penicillin in structure and antibiotic activity are produced by species of
76512. The production of alcohol from lactose of whey is generally carried out by
76513. Which of the following is not a principal media for industrial alcohol production by fermentation?
76514. The first commercial fermention carried out to obtain L-lysine is known as
76515. The precursor of Penicillin G is
76516. The precursor used for production of vitamin B12 by Streptomyces olivaceus is
76517. Most biopolymers produced by micro-organisms are
76518. Microbial rennet, which is used in cheese manufacture is produced by
76519. Production of L-lysine can be carried out by
76520. The citric acid is recovered from the fermentation broth as
76521. The sulphite waste liquor fermentation employs use of Candida utilis because of its ability to ferment
76522. Which of the following organisms have shown the ability of phosphate solubilization in red wine?
76523. The organism commonly used for the production of β carotene is/ are
76524. The organism commercially used for fungal fermentation to obtain citric acid is
76525. Erythromycin a broad spectrum antibiotic is obtained with the help of
76526. Which of the following was the first amino acid to be produced commercially?
76527. The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to
76528. Cycloserine may be isolated from the cultures of
76529. The first penicillin isolated by Alexander Fleming, penicillin F is also called
76530. It is mandatory that cultures and fermentation residues be sterilized before discard in case of Eremothecium ashbyii and Ashbya gossypii because they are
76531. The former name of Tokyo?
76532. Which is considered to be an anomalous compound?
76533. Which is considered to be an anomalous compound?
76534. Which of the following is an excretory organ?
76535. Which of the following is an excretory organ?
76536. Mycoplasmas are different from the other prokaryotes by
76537. Evolutionary relationships between groups of organisms are determined using which of the following type of information?
76538. Which of the following is not true for eukaryotic cells?
76539. Which of the following is not true for prokaryotic organism?
76540. Gram staining was introduced by
76541. Which of the following is considered the most unifying concept in biology?
76542. Various bacterial species can be subdivided into
76543. Living organisms have many complex characteristics. Which one of the following is shared by non-living matter as well?
76544. 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?
76545. Mycoplasmas, rickettsiae, and chlamydiae are
76546. Which of the following structure is absent in eukaryotic cells?
76547. Who was the inventor of the Petri dish?
76548. Which one is not studied in microbiology?
76549. A characteristic of protein synthesis in both the archaea and eukarya is
76550. Cell theory includes all of the following except