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TLS Online TPP Program

#Question id: 15417

Sequence of amphibian lens induction postulated by experiments on embryos of the frog Xenopus laevis ; EXCEPT

#Unit 5. Developmental Biology
  1. Unidentified inducers (possibly from the foregut endoderm and cardiac mesoderm) cause the synthesis of the Otx2 transcription factor in the head ectoderm during the late neurula stage.
  2. As the neural folds rise, inducers from the anterior neural plate (including the region that will form the retina) induce Pax6 expression in the anterior ectoderm that can form lens tissue.
  3. As the neural folds rise, inducers from the anterior neural plate (including the region that will form the retina) induce Pax6 expression in the anterior ectoderm that can form lens tissue.
  4. The optic vesicle secretes BMP and FGF family paracrine factors, which induce the synthesis of the Sox transcription factors and initiate observable lens formation
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TLS Online TPP Program

#Question id: 13204

#Unit 6. System Physiology – Plant

Many of the carriers of Sucrose–H+ symporters in the phloem play various role in transport, most of the transporters are found in source, path, and sink tissues. Some carriers are characterized such as;
a) SUT1, has high-affinity / low-capacity transporter found in the minor veins of source tissues, appears to be important in phloem loading.
b) Important role of SUT1 in phloem loading appears to be complemented by SUT4, which is low-affinity/high-capacity carrier
c) SUT2, appears to function as a sucrose sensor. This is indicated by findings showing that SUT2 is more highly expressed in sink and path tissues than in source leaves.
d) The major sucrose transporters in phloem loading into the companion cells and final uptake into companion cells appears to be the function of SUT4
Which of the following combination is correct?
TLS Online TPP Program

#Question id: 3509

#Unit 8. Inheritance Biology

Principle of independent assortment apply for those gene that is
TLS Online TPP Program

#Question id: 27413

#Unit 1. Molecules and their Interaction Relevant to Biology

Sandhoff disease are related to the mutation in which of the following enzyme
TLS Online TPP Program

#Question id: 23588

#Unit 13. Methods in Biology

Bacterial artificial chromosomes (BACs) require ________ in order to successfully enter into bacterial cells.
TLS Online TPP Program

#Question id: 11407

#Unit 10. Ecological Principles

Which of the following is incorrect statement?