TLS Online TPP Program

#Question id: 11797


A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as

#SCPH05 I Biotechnology
  1. Casparian strip
  2. Tracheids
  3. Plasmodesmata
  4. tonoplast
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TLS Online TPP Program

#Question id: 18387

#SCPH05 I Biotechnology

Structural features that make these compounds resistant to microbial degradation include
1. substitution of H by other groups
2. heterocyclic compounds
3. branched linear chains
Which of the above are correct?

TLS Online TPP Program

#Question id: 10524

#SCPH06 I Botany

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids, these alkaloids shows;

a) Alkaloids are derived from the tryptophan as constitutively produced defensive secondary metabolites

b) These benzoxazinoids such as DIBOA and its derivative DIMBOA are usually stored in the peroxisome

c) Upon damage, the inactive glycosides are hydrolyzed, generating glucosinolate, which are toxic not only to insect herbivores but also against pathogens

d) DIBOA and DIMBOA perform insecticidal and pesticidal activities

e) It can be inactivated by hydroxylation and N-glycosylation reactions

Which of the following combination is correct about benzoxazinoids alkaloids?

TLS Online TPP Program

#Question id: 958

#SCPH06 I Botany

Phenylketonuria (PKU) is a disease caused by a defect in ________ formation.

TLS Online TPP Program

#Question id: 4336

#SCPH06 I Botany

Which of the following processes would result from a mutation that deactivates a regulatory gene of a repressible operon in an E. coli cell?

TLS Online TPP Program

#Question id: 5207

#SCPH28 | Zoology

Why is it unwise to try to relate an organismʹs complexity with its size or number of cells?