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TLS Online TPP Program

#Question id: 7145

In the development of the nervous system, which is the correct order of events?

#Unit 5. Developmental Biology
  1. First, cells must be specified to be neurons, second, these neurons must make connections with their targets, third, the neurons must migrate to their final position, and fourth, the neurons refine their synaptic connections.
  2. First, cells must be specified to be neurons, second, the neurons must migrate to their final position, third, these neurons must make connections with their targets, and fourth, the neurons refine their synaptic connections.
  3. First, cells must migrate to their final position, second, these cells must be specified to be neurons, third, the neurons must make connections with their targets, and fourth, the neurons refine their synaptic connections.
  4. First, the prospective neurons must make connections with their targets, second, the neurons refine their synaptic connections, third, the neurons must migrate to their final position, and fourth, the cells are specified to become neurons.
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TLS Online TPP Program

#Question id: 28532

#Unit 5. Developmental Biology

Which of the following gene is necessary for the normal formation of basal elements such as the root and hypocotyl, encodes an auxin response transcription factor ?
TLS Online TPP Program

#Question id: 865

#Unit 1. Molecules and their Interaction Relevant to Biology

In autophagy, the endoplasmic reticulum (ER) first gives rise to a cup-shaped, membranous cisterna called the______
TLS Online TPP Program

#Question id: 19121

#Unit 8. Inheritance Biology

Trisomy 18 is one of the most common trisomies observed in human populations. You prepare DNA samples from two unrelated infants, both with trisomy 18, and from their parents. You then type the infants and their parents for four SSRs distributed along chromosome 18:
 

                                              
In which parent did nondisjunction occur in Family 2?
TLS Online TPP Program

#Question id: 123

#Unit 1. Molecules and their Interaction Relevant to Biology

Which would you expect for the fatty acyl chains of the membrane phospholipids of bacteria grown at low temperature?
TLS Online TPP Program

#Question id: 32344

#Unit 1. Molecules and their Interaction Relevant to Biology

TIGAR (TP53-induced glycolysis and apoptosis regulator) is an enzyme which is