Practice Questions

TLS Online TPP Program

#Question id: 4362

How are bacteria able to change their patterns of protein synthesis so quickly in response to environmental changes?

#3. Fundamental Processes

mRNAs that are produced are short-lived and degraded within a few minutes of being synthesized.
mRNA have long lifespans, allowing the bacteria to use them many times for translation.
mRNA is stored for later use.
Operons are activated in the presence of transcription factors.

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TLS Online TPP Program

#Question id: 17813

#7. System Physiology – Animal

During the stress response, cortisol triggers the release of ______.

TLS Online TPP Program

#Question id: 17821

#13. Methods in Biology

is most frequently observed data value

TLS Online TPP Program

#Question id: 17822

#13. Methods in Biology

Mode of 1,2,3,4,4,5 is

TLS Online TPP Program

#Question id: 17823

#13. Methods in Biology

Mode of data 1,1,2,2,5,3,4,4 is

TLS Online TPP Program

#Question id: 18006

#11. Evolution and Behavior

During which geological period origin, first forests; lands plants well established?

TLS Online TPP Program

#Question id: 18007

#11. Evolution and Behavior

The following geological eras mark the advent of important events in the history of earth- origin of first vertebrates armored fishes, origin of First reptiles, origin of first dinosaurs;

a) Triassic b) Pennsylvanian

c) Ordovician d) Cambrian

Identify the correct match of the events with the geological era;