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?

#Unit 11. Evolution and Behavior

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: 19991

#Unit 2. Cellular Organization

Consider 5000 bp with 1000 bp (1 Copy), 700 bp (5 Copies) and 100 bp (5 Copies) calculate complexity (N/L ratio) of genome?

TLS Online TPP Program

#Question id: 19992

#Unit 2. Cellular Organization

Viral and bacteriophage genomes have almost no repeated DNA, then

TLS Online TPP Program

#Question id: 19993

#Unit 2. Cellular Organization

Low Cot1/2 value means

TLS Online TPP Program

#Question id: 19994

#Unit 2. Cellular Organization

Quantification of reassociation/annealing of various part of DNA is called

TLS Online TPP Program

#Question id: 19995

#Unit 2. Cellular Organization

Drosophila melanogaster also shows C-Value paradox in terms of their number of genes. If Drosophila have total 1 x 108 base pairs and average size of one gene is 2000 bp then mathematically gene capacity of Drosophila is

TLS Online TPP Program

#Question id: 19996

#Unit 2. Cellular Organization

The rate of loss of single-stranded (ss) DNA during renaturation is a