Question47:-Which of the following is not a gaseous air pollutant ?
A:-Oxides of sulphur
B:-Oxides of nitrogen
C:-Hydrocarbon
D:-Smoke
Correct Answer:- Option-D
Question48:-Which one of the following agricultural practices is eco-friendly ?
A:-Organic farming
B:-Shifting cultivation
C:-Cultivation of high yielding varieties
D:-Glass house farming
Correct Answer:- Option-A
Question49:-Name the plant which is known as Terror of Bengal
A:-Agave
B:-Ginger
C:-Bryophyllum
D:-Water hyacinth
Correct Answer:- Option-D
Question50:-Angiosperm seeds with perisperm
A:-Castor
B:-Black pepper
C:-Barley
D:-Wheat
Correct Answer:- Option-B
Question51:-Plant propagation technique practiced in pomograte
A:-Air layering
B:-Gootee
C:-Gastra
D:-Oegium
Correct Answer:- Option-B
Question52:-Name the stage of cell division where segregation of independent pair of chromosomes occur
A:-Anaphase -1
B:-Prophase-1
C:-Meiosis-2
D:-Telophase-1
Correct Answer:- Option-A
Question53:-Name the enzyme responsible for the transcription of tRNA
A:-RNA polymerase III
B:-RNA polymerase II
C:-Polymerase
D:-RNA polymerase-!
Correct Answer:- Option-A
Question54:-The maximum number of genes is present in human chromosome
A:-Chromosome No. 7
B:-Chromosome No. 3
C:-Chromosome No. 5
D:-Chromosome No. 1
Correct Answer:- Option-D
Question55:-A marine angiosperm is
A:-Wolffia
B:-Lemna
:-Valliseneria
D:-Zostera
Correct Answer:- Option-D
Question56:-The colour tag of breeder seed is
A:-Yellow
B:-White
C:-Purple
D:-Blue