Chloromycetin is obtained from

• Streptomyces venezuelae

• Streptomyces rimosus

• Bacillus subtilis

• Clostridium botulinum

Match the following organisms with the products they produce.

Select the correct option.

• A - ii; B - iv; C - iii; D - v

• A - iii; B - iv; C - v; D - i

• A - ii; B - i; C - iii; D - v

• A - ii; B - iv; C - v; D - iii

Viruses of the genus Nucleopolyhedrovirus are employed as

• Gobar gas producers

• Biological control agents

• Anaerobic sludge digesters

• Antibiotics

• Antibiotics

Ernest Chain and Howard Florey's contribution was

• discovery of streptokinase

• establishing the potential of penicillin as an effective antibiotic

• discovery of the DNA sequencer

• isolating the bacterial plasmid

• isolating the bacterial plasmid

Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for

• used as a fertilizer

• Construction of roads

• Making tubes and pipes

• Making plastic sacks

Which of the following microbes is used for the commercial production of ethanol?

• Clostridium butylicum

• Trichoderma polysporum

• Monascus purpureus

• Saccharomyces cerevisiae

• Saccharomyces cerevisiae

• i - E; ii - A; iii - D; iv - C; v - B

• i - B; ii - A; iii - D; iv - D; v - C

• i - C; ii - A; iii - B; iv - C; v - D

• i - C; ii - E; iii - A; iv - D; v - B

• i - C; ii - E; iii - A; iv - D; v - B

Select the correct group of biocontrol agents.

• Trichoderma, Baculovirus, Bacillus thuringiensis

• Oscillatoria, Rhizobium, Trichoderma

• Nostoc, Azospirillium, Nucleopolyhedrovirus

• Bacillus thuringiensis, Tobacco Mosaic Virus, Aphids

The microbial biocontrol agent for butterfly caterpillar is

• Bacillus thuringiensis

• Sacchromyces

• Lactobacillus

• Cyanobacteria

• Cyanobacteria

Select the incorrect statement.

• Inbreeding is essential to evolve purelines in any animal.

• Inbreeding selects harmful recessive genes that reduce fertility and productivity

• Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.

• Inbreeding increases homozygosity