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TLS Online TPP Program

#Question id: 4035

Which of the following is most involved in elongation of the RNA transcript?

#Unit 3. Fundamental Processes

  1. sigma factor

  2. UP elements 

  3. -10 region 

  4. both sigma factor and UP elements

More Questions
TLS Online TPP Program

#Question id: 1845

#Unit 4. Cell Communication and Cell Signaling

BCG is used to protect against:
TLS Online TPP Program

#Question id: 12528

#Unit 6. System Physiology – Plant

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?
TLS Online TPP Program

#Question id: 1522

#Unit 4. Cell Communication and Cell Signaling

Conversion of a proto-oncogene into an oncogene, also called activation, generally involves a gain-of-function mutation. Following statements are regarding to the mechanisms that produce oncogenes from the corresponding proto-oncogenes.

A. A change in a single base pair in a proto-oncogene that results in a hyperactive or constitutively active protein product.

B. A chromosomal translocation that fuses two genes together to produce a hybrid gene encoding a chimeric protein whose activity, unlike that of the parent proteins, is permanently suppress.

C. A chromosomal translocation that brings a growth regulatory gene under the control of alternative enhancers that cause inappropriate expression of the gene.

D. Amplification of a DNA segment including a proto-oncogene so that numerous copies exist, leading to overproduction of the encoded protein.

Which of the following statements are correct?
TLS Online TPP Program

#Question id: 1194

#Unit 4. Cell Communication and Cell Signaling

NF- κB signaling is important in:
TLS Online TPP Program

#Question id: 11744

#Unit 6. System Physiology – Plant

Large pores in cell walls are the prominent feature of sieve elements, the sieve area pores range in diameter from