Practice Questions

TLS Online TPP Program

#Question id: 601

In a ping-pong reaction which does not occur?

#Unit 1. Molecules and their Interaction Relevant to Biology

One product is released before a second substrate is bound.
The enzyme covalently binds a portion of the first substrate.
The enzyme is permanently converted to an altered form by the first substrate.
A group is transferred from one substrate to another.

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TLS Online TPP Program

#Question id: 12325

#Unit 10. Ecological Principles

According to bottom-up and top-down control models of community organization, which of the following expressions would imply that an increase in the size of a carnivore (C)population would negatively impact on its prey (P) population, but not vice versa?

TLS Online TPP Program

#Question id: 4932

#Unit 10. Ecological Principles

Which of the following is the best hypothesis regarding origins of nucleic acids?

TLS Online TPP Program

#Question id: 3002

#Unit 2. Cellular Organization

Cells are most sensitive to penicillin during which phase of the growth curve?

TLS Online TPP Program

#Question id: 15406

#Unit 8. Inheritance Biology

Which method of gene transfer involves direct contact between the bacteria?

TLS Online TPP Program

#Question id: 23941

#General Aptitude

Gross enrolment Ratio in Higher Education in India during 2014-15 is