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TLS Online TPP Program

#Question id: 9189

A plant will recognize a pathogenic invader

#SCPH28 | Zoology
  1. if it has many specific plant disease resistance (R) genes.
  2. when the pathogen has an R gene complementary to the plantʹs antivirulence (Avr) gene.
  3. only if the pathogen and the plant have the same R genes.
  4. if it has the specific R gene that corresponds to the pathogen molecule encoded by an Avr gene.
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TLS Online TPP Program

#Question id: 4154

#SCPH28 | Zoology

How many possible codons (of normal size) are possible using the bases found in DNA?
TLS Online TPP Program

#Question id: 11411

#SCPH06 I Botany

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

 A. Rare species are more prone to extinction than common ones.

 B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

 C. Organisms that are specialists are more likely to go extinct

 D. Species with naturally long life spans may be more likely to become extinct
TLS Online TPP Program

#Question id: 1580

#SCPH05 I Biotechnology

Advantages of Toxoid (inactivated exotoxin) can be
TLS Online TPP Program

#Question id: 3060

#SCPH05 I Biotechnology

A bacteria having doubling time of 1 minute, fills a cylindrical vessel completely in 3 hours. How much time will it take to fill half of the vessel?
TLS Online TPP Program

#Question id: 13073

#SCPH06 I Botany

Restriction enzymes must be use in RFLP and RAPD markers for genome mapping in plants;