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TLS Online TPP Program

#Question id: 11828

Given some enzymes of ethylene biosynthetic pathway and its character;

A) ACC synthase                                                               i) It is an unstable, cytosolic enzyme. Its level is regulated by environmental and internal factors, such as wounding, drought stress, flooding, and auxin

B) ACC oxidase                                                                  ii) It catalyzes the last step in ethylene biosynthesis, the conversion of ACC to ethylene

                                                                                                iii) Its activity can be the rate-limiting step in ethylene biosynthesis

                                                                                                iv) That is encoded by a multigene family that is differentially regulated

                                                                                                v) It is present in such low amounts in plant tissues and is very unstable and also difficult to purify the enzyme  for biochemical analysis

                                                                                                vi) These enzymes belong to the Fe2+/ascorbate oxidase superfamily

Find out the correct combination from the given enzymes and its character?

#Unit 6. System Physiology – Plant
  1. A-i, ii, vi ;  B-iii, iv, v
  2. A-ii, iii, vi ;  B-i, iv, v
  3. A-iv, v, vi ;  B-i, ii, iii
  4. A-i, iii, iv, v ;  B-ii, , vi
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TLS Online TPP Program

#Question id: 12948

#Unit 13. Methods in Biology

Proteolytic cleavage of DNA polymerase by subtilisin caused loss of its nick translation activity. Which of the following properties is lost?
TLS Online TPP Program

#Question id: 7551

#General Aptitude

A car is 50 of its own leaps behind a rat. the car takes 5 leaps per minute to the rat’s 4.It the car and the rat cover 8 m and 5 m per leap respectively, what distance will the Cat have to run before it catches the rat?
TLS Online TPP Program

#Question id: 3466

#Unit 11. Evolution and Behavior

Animal preference of polygyny mating systems because of
TLS Online TPP Program

#Question id: 13140

#Unit 10. Ecological Principles

One summer the moose population on Island was unusually high, and park naturalists noticed signs of malnutrition among the  adults.  The wolf population  was  fairly  low,  near  20.  That  winter,  for  the  first  time  in  many  years,  a substantial  number of seemingly healthy adult moose as well as calves and crippled animals were killed and eaten by wolves. This description is part of a general situation in which the wolf and moose populations
TLS Online TPP Program

#Question id: 10692

#Unit 10. Ecological Principles