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TLS Online TPP Program

#Question id: 5676

The importance of dynein can be seen in individuals with a genetic syndrome known as the Kartagener triad. which of the following statement is correct?

#Unit 5. Developmental Biology

  1. These individuals lack functional dynein in all their ciliated and flagellated cells, rendering these structures immotile.

  2. Dynein is an ATPase—an enzyme that hydrolyzes ATP, converting the released mechanical energy into chemical energy that propels the sperm.

  3. Only mens are affected by this syndrome are susceptible to bronchial infections (immotile respiratory cilia).

  4. Infected men have a 50% chance of having the heart on the left side of the body.

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TLS Online TPP Program

#Question id: 3040

#Unit 2. Cellular Organization

Which of the following is electron source for lithotrophs microorganisms?
TLS Online TPP Program

#Question id: 910

#Unit 1. Molecules and their Interaction Relevant to Biology

Experiments on denaturation and renaturation after the reduction and reoxidation of the —S—S— bonds in the enzyme ribonuclease (RNase) have shown that:
TLS Online TPP Program

#Question id: 5682

#Unit 5. Developmental Biology

During prevention of polyspermy in sea urchin the shift from ___1___ to __2____is the result of a small influx of Na+ into the egg through newly opened sodium channels. Sperm cannot fuse with egg cell membranes that have a ___3___ resting potential, so the shift means that no more sperm can fuse to the egg.
TLS Online TPP Program

#Question id: 22960

#Unit 7. System Physiology – Animal

What are the types of cells found in parathyroid gland?
TLS Online TPP Program

#Question id: 7310

#Unit 5. Developmental Biology

Which statement best describes the mechanism for circadian rhythm?