TLS Online TPP Program

#Question id: 12528


According to a recent model, the balance between the activities of ABA and gibberellin in seeds is under both developmental and environmental control such as
a) early stages of seed development, ABA sensitivity is high and gibberellin sensitivity is low, which favors dormancy over germination
b) Later in seed development, ABA sensitivity declines and gibberellin sensitivity increases, favoring germination.
c) Environmental factors such as temperature  and light affect the ABA:GA ratios by activation of the  NCED and GA2ox enzyme, which promotes seed dormancy
d) During an Ambient environment, activation of GA3ox and CYP707A2 inducing dormancy
Which of the following combination  from the above statements is incorrect?

#Unit 6. System Physiology – Plant
  1. only D
  2. C and D
  3. A and C
  4. only b,
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TLS Online TPP Program

#Question id: 19131

#Unit 12. Applied Biology

How analyte and biological substances interacted in a biosensor?

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#Question id: 4076

#Unit 3. Fundamental Processes

RNA-binding proteins

a. can be identified by chromatography of UV irradiated nuclear extracts over oligo-dT columns.

b. can be identified by sequence homology to known RNA-binding domains.

c. have a conserved structure as seen by X-ray crystallographic analysis.

d. alter the secondary structure of pre-mRNAs, which decreases interactions with other RNAs or proteins.

e. always remain in the nucleus.

TLS Online TPP Program

#Question id: 20274

#Unit 7. System Physiology – Animal

ADH has two actions, one on the kidney and the other on vascular smooth muscle, these actions are mediated by different receptors, different intracellular mechanisms, and different secondary messengers.
a. The major action of ADH is to increase the water permeability of principal cells in the late distal tubule and collecting duct.
b. The receptor for ADH on the principal cells is a V2 receptor, which is coupled to adenylyl cyclase via a Gs protein. 
c. The second messenger is cAMP, via phosphorylation steps, directs the insertion of water channels, aquaporin 2 (AQP2), in luminal membranes.
d. The receptor for ADH on the principal cells is a V1 receptor, which is coupled to phospholipase C via Gq protein.
Which one of the following combination of above statements is correct?

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#Question id: 17666

#Unit 11. Evolution and Behavior

 In the Mesozoic era, periods included;
A. Cretaceous
B. Jurassic
C. Triassic
i) Increase of dicotyledons
ii) Seeds ferns disappear
iii) Rapid development of angiosperms
iv) Spread of cycads and conifers
v) Gymnosperms declined
Find out the correct match of given period with their plants diversification events;

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#Question id: 3583

#Unit 8. Inheritance Biology

In sesame plants, the one-pod condition (P) is dominant to the three-pod condition (p), and normal leaf (L) is dominant to wrinkled leaf (l). Pod type and leaf type are inherited independently. Determine the genotypes for the two parents for all possible cross producing the following offspring:

(a) 300 one-pod, normal leaf and 100 one-pod, wrinkled leaf

(b) 323 three-pod, normal leaf and 106 three-pod, wrinkled leaf

(c) 150 one-pod, normal leaf, 147 one-pod, wrinkled leaf, 51 three-pod, normal leaf, and 48 three-pod, wrinkled leaf

(d) 223 one-pod, normal leaf, 72 one-pod, wrinkled leaf, 76 three-pod, normal leaf, and 27 three-pod, wrinkled leaf