Practice Questions

TLS Online TPP Program

#Question id: 66

Which of the following statements regarding isomerism is incorrect regarding biomolecules?

#Unit 1. Molecules and their Interaction Relevant to Biology

Stereoisomers that are mirror images of each other are called enantiomers.
A carbon atom with four different substituents is said to be asymmetric, and asymmetric carbons are called chiral centers.
Pairs of stereoisomers that are not mirror images of each other are called diastereomers.
An equimolar solution of the two enantiomers (a racemic mixture) rotates the plane of plane-polarized light in a particular direction.

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TLS Online TPP Program

#Question id: 2944

#Unit 2. Cellular Organization

DNA replication at each origin occurs only once during the cell cycle because of:

TLS Online TPP Program

#Question id: 3015

#Unit 2. Cellular Organization

All the bacterial cells that result from the replication of a single original bacterial organism are said to be a

TLS Online TPP Program

#Question id: 10822

#Unit 10. Ecological Principles

When two organisms attempt to utilize the same resource, the result is:

TLS Online TPP Program

#Question id: 17219

#Unit 7. System Physiology – Animal

What is the first stage of the General Adaptation Syndrome?

TLS Online TPP Program

#Question id: 2942

#Unit 2. Cellular Organization

During mitosis, the breakdown of the nuclear envelope depends on the: