Practice Questions

TLS Online TPP Program

#Question id: 7109

What observation might explain how somites originally become specified to form structures appropriate to their position along the antero-posterior axis?

#Unit 5. Developmental Biology

If pre-somitic mesoderm is rotated, the somites form in a reversed order.
Somites in the anterior of the embryo form before somites in the more posterior regions.
A gradient of retinoic acid exists that emanates both anteriorly and posteriorly from the somites.
Periodic waves of c-hairy1 are expressed in the presomitic mesoderm, such that cells in the more anterior somites will have been exposed to fewer waves of c-hairy1 than the cells in more posterior somites.

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TLS Online TPP Program

#Question id: 23035

#Unit 12. Applied Biology

What kind of bacteria can oxidize methane to carbon dioxide via Methanol, Formaldehyde?

TLS Online TPP Program

#Question id: 2267

#Unit 2. Cellular Organization

Glycoproteins and glycolipids assembled in Golgi bodies are packaged for distribution in

TLS Online TPP Program

#Question id: 2167

#Unit 2. Cellular Organization

Polarized cells in animals

TLS Online TPP Program

#Question id: 10519

#Unit 6. System Physiology – Plant

Which of the following toxins derived from the fungus Cochliobolus carbonum inhibits specific histone deacetylases in maize?

TLS Online TPP Program

#Question id: 14778

#Unit 13. Methods in Biology

Two dice are thrown the probability of getting an odd number on the one and a multiple of 3 on the other is