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TLS Online TPP Program

#Question id: 4354

Which of the following statements correctly describes the primary difference between enhancers and proximal control elements?

#SCPH06 I Botany

  1. Enhancers are transcription factors; proximal control elements are DNA sequences.

  2. Enhancers improve transcription; proximal control elements inhibit transcription.

  3. Enhancers are located considerable distances from the promoter; proximal control elements are close to the promoter.

  4. Enhancers are DNA sequences; proximal control elements are proteins.

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TLS Online TPP Program

#Question id: 17819

#SCPH01 Biochemistry

During RNA extraction, the homogenate is first treated with
TLS Online TPP Program

#Question id: 19225

#SCPH28 | Zoology

Modification of the tissue culture conditions by the inclusion of ________ during transformation of grape, rice, corn, or soybean has been found to increase the transformation frequencies of those plant cells.
TLS Online TPP Program

#Question id: 5552

#I Life Science/ Life Sciences Group – I-V

Soon after gastrulation, dorsal ectodermal cells condense and form a tube called the _______________ tube.
TLS Online TPP Program

#Question id: 5067

#SCPH28 | Zoology

The yolky eggs of birds undergo:
TLS Online TPP Program

#Question id: 13052

#SCPH28 | Zoology

What would be the effect on the PCR reaction if any of the following circumstances arose: 1) there are no primers in the reaction, 2) there are no dNTPs in the reaction, 3) there is no Taq polymerase in the reaction?