Practice Questions

TLS Online TPP Program

#Question id: 4601

DDT was once considered a "silver bullet" that would permanently eradicate insect pests. Instead, DDT is largely useless against many insects. Which of these would have prevented this evolution of DDT resistance in insect pests?

#SCPH06 I Botany

All habitats should have received applications of DDT at about the same time.
The frequency of DDT application should have been higher.
None of the insect pests would have genetic variations that resulted in DDT resistance.
DDT application should have been continual.

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TLS Online TPP Program

#Question id: 27999

#Research Methodology

Research is

TLS Online TPP Program

#Question id: 18693

#SCPH01 Biochemistry

which of the following is incorrect about protein structure comparison?

TLS Online TPP Program

#Question id: 4132

#SCPH28 | Zoology

In E. coli, aminoacyl-tRNA synthetases:

TLS Online TPP Program

#Question id: 685

#SCPH05 I Biotechnology

A protein has a molecular weight of 5600 daltons; its subunits are about 1960 daltons. There are ________ protein chains per oligomer.

TLS Online TPP Program

#Question id: 3473

#SCPH06 I Botany

Effective and biparental caring of offspring is more common in