Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 41284
TLS Online TPP Program

#Question id: 3866

Which of the following statements about E. coli RNA polymerase (core enzyme) is false?

#SCPH05 I Biotechnology

  1. In the absence of the B subunit, core polymerase has little specificity for where initiation begins.

  2. he core enzyme contains several different subunits.

  3. The core enzyme has no polymerizing activity until the  subunit is bound.

  4. The RNA chain grows in a 5' -> 3' direction.

More Questions
TLS Online TPP Program

#Question id: 22948

#SCPH06 I Botany

In the floral meristem, the FT-FD complex → SOC1 and AP1 → ____?___ gene expression
TLS Online TPP Program

#Question id: 9255

#SCPH28 | Zoology

Studying species transplants is a way that ecologists ________.
TLS Online TPP Program

#Question id: 5212

#SCPH28 | Zoology

Barbara McClintock, famous for discovering that genes could move within genomes, had her meticulous work ignored for nearly 4 decades, but eventually won the Nobel Prize. Why was her work so distrusted?
TLS Online TPP Program

#Question id: 10522

#SCPH05 I Biotechnology

Mechanical barriers provide a first line of defence against insect pests and pathogens, these mechanical barriers developed by plants;

                   COLUMN A  

                     COLUMN B

A. Thorns

i) It can be found on the stem and petioles of roses and are formed by the epidermis

B. Spines

ii) Found on a lemon tree (Citrus sp.) are modified branches, as can be seen by their position in the axil of a leaf

C. Prickles

iii) Found on shoot and leaves of tomato (Solanum lycopersicum) are derived from epidermal cells

D. Trichomes

iv) which are characteristic of cacti (Opuntia spp.) in the New World, are modified leaves

Match correctly following combination of barrier developed by plants ;
TLS Online TPP Program

#Question id: 19197

#SCPH06 I Botany

What are calorimetric biosensors?