TLS Online TPP Program

#Question id: 7123


In chicks, the formation of the neural tube relies on what cell biological processes?

#Unit 5. Developmental Biology
  1. Changes in cell shape in the neural plate are the only process required for neural tube formation.
  2. Changes in adhesiveness between the prospective neural tube cells and the prospective epidermis in the ectoderm are the only changes required for neural tube formation.
  3. Both changes in cell shape in the neural plate and changes in adhesion molecule expression in the neural tube are required during formation of the neural tube.
  4. Prospective neural tube cells in the ectoderm undergo medio-lateral intercalation, then involute and form the neural tube.
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TLS Online TPP Program

#Question id: 24621

#Unit 2. Cellular Organization

Which of the following component has the highest proportion in human genome

TLS Online TPP Program

#Question id: 3424

#Unit 11. Evolution and Behavior

Which of the following statement is correct? 

A. Darwin, theory of natural selection based on better-adapted organisms would acquire more resources and leave more offspring.

B. When population sizes become too small, individuals accumulate deleterious (harmful) mutations, and survival of offspring is threatened

C. Inbreeding is more likely to take place in nature when population size becomes very small and the number of mates is limited.

D. Effective population size can be reduced by harem mating structures

E. The movement of a few individuals between populations can counteract the effects of genetic drift

TLS Online TPP Program

#Question id: 11805

#Unit 6. System Physiology – Plant

P-proteins from the genus Cucurbita consist of two major proteins: PP1, the phloem filament protein, and PP2, the phloem lectin. Both PP1 and PP2 are thought to be synthesized in_______A___________and transported via the_______B_________to the_______C______, where they associate to form P-protein filaments and P-protein bodies.

TLS Online TPP Program

#Question id: 26363

#Unit 2. Cellular Organization

Which of the type of reactions performed in Inserting DNA into a phage head

TLS Online TPP Program

#Question id: 15664

#Unit 8. Inheritance Biology

Which of the following statements regarding epigenetic inheritance is FALSE?