Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 52497
TLS Online TPP Program

#Question id: 4331

In eukaryotic cells, transcription cannot begin until

#SCPH01 Biochemistry

  1. the two DNA strands have completely separated and exposed the promoter.

  2. several transcription factors have bound to the promoter.

  3. the 5 caps are removed from the mRNA.

  4. the DNA introns are removed from the template.

More Questions
TLS Online TPP Program

#Question id: 23158

#SCPH06 I Botany

You have purified protein X and injected into an animal so that over a period of weeks, the animal will mount an immune response and make antibodies to protein X. By which technique these generated antibodies can be extracted from blood serum.
TLS Online TPP Program

#Question id: 23159

#SCPH06 I Botany

Rhodamine is a fluorescent dye which emits a colour?
TLS Online TPP Program

#Question id: 23160

#SCPH06 I Botany

Texas is a fluorescent dye which emits a colour?
TLS Online TPP Program

#Question id: 23161

#SCPH06 I Botany

A classically used fluorescent dye which emits a orange light is?
TLS Online TPP Program

#Question id: 23162

#SCPH06 I Botany

Match the fluorescent dyes in column I with emission light in column II
Column I                                                                          Column II
1. Texas                                                                            a. far red
2. Fluorescein                                                                   b. red
3. Rhodamine                                                                   c. blue 
4. Cy5                                                                               d. green
Which of the following option comprises all correct matches?
TLS Online TPP Program

#Question id: 23163

#SCPH06 I Botany

Out of the given below alexa dyes which one will emit in red light range?