GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 091

GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 091

 

901). Why blue green algae are called cyano bacteria?
A). because they are prokaryotic
B). because they live in watery medium
C). because they haye blue colour
D). because they are unicellular organisms

Answer: because they haye blue colour

   
902). The gymnosperms resemble angiosperms in having
A). ciliated sperms
B). presence of archegonia
C). presence of ovules
D). presence of monoxylic wood

Answer: presence of ovules


   
903). The disease caused by the fungus colletotrichum falcatum is known as
A). downy mildew
B). leaf curl
C). red rot
D). blight disease

Answer: red rot


   
904). Dendrochronology is the study of
A). height of a tree
B). diameter of a tree
C). age of a tree with the help of annual rings
D). counting the number of branches

Answer: age of a tree with the help of annual rings


   
905). Clove is obtained from which parts given below?
A). stem
B). flower
C). leaves
D). root

Answer: flower



906). Match list I with list II correctly and select your answer using the codes given below:
List-I            List-II
1) Riccia      1)Monoecious
b) Selanginella    2) Homosporous
c) Nephrolepis    3) Heterosporous
d) Pinus      4) Homothallic
the below options are given in A B C D order:
A). 4 3 2 1
B). 3 4 1 2
C). 1 3 4 2
D). 2 1 3 4

Answer: 4 3 2 1


   
907). Which of the algae given below grows in sewage ponds?
A). chlorella
B). volvox
C). gelidium
D). ulva

Answer: volvox

   
908). which of the plant groups mentioned below are popularly known as amphibious of plant kingdom?
A). bacteria
B). fungi
C). algae
D). bryophytes

Answer: bryophytes

   
909). DNA double helical structure was described for the first time by
A). Beadle and Tautum
B). Mclntosch
C). Hargobind Khorana
D). Watson and Crick

Answer: Watson and Crick

   
910). Catalytically active enzyme is called
A). holoenzyme
B). coenzyme
C). apoenzyme
D). ribozyme

Answer: apoenzyme