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TLS Online TPP Program

#Question id: 574

Which of the following statements is FALSE?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Enzymes make reactions 103 to 1020 times faster.

  2. Enzymes lower the amount of energy needed for a reaction.

  3. Enzymes are chemically unchanged during the actual catalytic process.

  4. Enzymes speed up the attainment of a reaction equilibrium.

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TLS Online TPP Program

#Question id: 17267

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. Estimate q, the frequency of allele a, in Generation 1. Show your calculations. 
TLS Online TPP Program

#Question id: 5815

#Unit 8. Inheritance Biology

In the Ames test:
TLS Online TPP Program

#Question id: 11413

#Unit 10. Ecological Principles

Which of the following is NOT an attribute of a species that makes it vulnerable to extinction?
TLS Online TPP Program

#Question id: 31411

#Unit 7. System Physiology – Animal

Which phase of the nerve action potential is responsible for propagation of the action potential to neighboring sites?
TLS Online TPP Program

#Question id: 19072

#Unit 6. System Physiology – Plant

Bacterial surface triggered immunity in the host plant gives response