Practice Questions

TLS Online TPP Program

#Question id: 4949

What probably accounts for the switch to DNA-based genetic systems during the evolution of life on Earth?

#11. Evolution and Behavior

DNA is chemically more stable and replicates with fewer errors (mutations) than RNA.
Only DNA can replicate during cell division.
RNA is too involved with translation of proteins and cannot provide multiple functions.
DNA forms the rod-shaped chromosomes necessary for cell division.

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TLS Online TPP Program

#Question id: 9244

#9. Diversity of Life Forms

One characteristic that distinguishes a population in an extinction vortex from most other populations is that

TLS Online TPP Program

#Question id: 18377

#12. Applied Biology

Why xenobiotic compounds are considered ad recalciterants?

TLS Online TPP Program

#Question id: 23368

#Aptitude

The combination of computing, telecommunications and media in a digital atmosphere is referred to as:

TLS Online TPP Program

#Question id: 23740

#Aptitude

(a) L is the brother of K.

(b) K is the friend of M.

Inference: L is the friend of M.

TLS Online TPP Program

#Question id: 677

#1. Molecules and their Interaction Relevant to Biology

A helical wheel can be used to show