A G-less cassette, or stretch of nucleotides lacking guanines in the nontemplate strand, is inserted just downstream of the promoter. This template is transcribed in vitro with CTP, ATP, and UTP, one of which is labeled, but no GTP.

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#Unit 3. Fundamental Processes

he ability of the enzyme to terminate in vitro, however, is strongly influenced by parameters such as the ionic strength and temperature at which the reaction is performed.

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#Unit 10. Ecological Principles

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#Unit 11. Evolution and Behavior

Stimuli
Anything that can trigger a physical or Behavioral change

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#Unit 10. Ecological Principles

Clustered dispersions

Social groups

Clustered resources

Offspring that remain close to their parents.

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#Unit 5. Developmental Biology

Major genes affecting segmentation pattern 

1.Gap genes                 2. Pair rule genes(primary)           3. Segment polarity genes      

Kruppel (Kr)                    hairy(h)                                             engrailed (en)

knirps (kni)                      even skipped(eve)                           wingless (wg)

hunchback (hb)              runt(run)                                           cubitus interruptus(ci) 

giant (gt)                          Pair rule genes (secondary)           hedgehog(hh)

tailless (til)                       fushi tarazu (ftz)                              fused (fu)

huckebein (hkb)              odd paired (opa)                             armadillo (arm)

buttonhead (btd)            odd skipped (odd)                          patched (ptc)

empty spiracles (ems)    sloppy paired (slp)                          gooseberry (gsb)

orthodenticle (otd)         paired (prd)                                      pangolin (pan