GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 075

GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 075 

 

741). Which of the following acts as a coenzyme?
A). Zn++
B). Lipase
C). Pyridoxin
D). Lvsine

Answer: Zn++

    
742). The phenotypic ratio of monohybrid cross is
A). 1:1:1:1
B). 1 : 2: 1
C). 3 : 1
D). 1 : 1

Answer: 3 : 1

    
743). Smallest measuring unit in cytology is
A). micron
B). mm
C). angstrom
D). rem

Answer: angstrom


744). It is believed that live evolved in its early stage under oxygen free condition. Which of the following organisms might have been able to survive in that environment?
A). obligate anaerobic bacteria
B). obligate halophytes
C). lichens
D). thermophilic algae

Answer: obligate anaerobic bacteria

    
745). Sexual reproduction is absent in which group of fungi mentioned below?
A). Deuteromycetes
B). Basidiomycetes
C). Phycomycetes
D). Ascomycetes

Answer: Deuteromycetes


746). one of the characteristics that differentiates procaryotes from eucaryotes is
A). RNA
B). DNA
C). Protein
D). Membrane - bound organelles

Answer: Membrane - bound organelles


747). The most common method of vegetative reproduction in usnea is
A). fragmentation
B). soredia
C). gemmae
D). homogania

Answer: soredia


748). Which of the fungi mentioned below is employed as a genetic tool?
A). Aspergillus
B). Neurospora
C). Gibberella
D). Penicillium

Answer: Neurospora

    
749). Heterotrichous habit exhibited by
A). Vaucheria
B). Dictyota
C). Ectocarpus
D). Spirogyra

Answer: Ectocarpus


750). Photosynthesis cannot take place in
A). red light
B). blue light
C). ultraviolet light
D). green light

Answer: ultraviolet light