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TLS Online TPP Program

#Question id: 28918

Which of the following statements is correct about Sonic hedgehog?

#Unit 4. Cell Communication and Cell Signaling

  1. It is assuring that motor neurons come from the Anterior portion of the neural tube & essential for normal patterning of the limb

  2. It is assuring that motor neurons come from the posterior portion of the neural tube & essential for normal patterning of the limb

  3. It is assuring that motor neurons come from the dorsal portion of the neural tube & essential for normal patterning of the limb

  4. It is assuring that motor neurons come only from the ventral portion of the neural tube & essential for normal patterning of the limb
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TLS Online TPP Program

#Question id: 5566

#Unit 5. Developmental Biology

In some rare salamander species, all individuals are females. Reproduction relies on those females having access to sperm from males of another species. However, the resulting embryos receive no genetic contribution from the males. Why do you think sperm are necessary for reproduction?
TLS Online TPP Program

#Question id: 525

#Unit 1. Molecules and their Interaction Relevant to Biology

Under what situation might lactic acidosis occur?
TLS Online TPP Program

#Question id: 10909

#Unit 6. System Physiology – Plant

The energy is essential for some aspects of movement from sieve elements to sink cells, which store or metabolize the sugar. This movement of photosynthate from sieve elements to sink cells is called
TLS Online TPP Program

#Question id: 957

#Unit 1. Molecules and their Interaction Relevant to Biology

Which is not produced from the degradation of branched-chain amino acids?
TLS Online TPP Program

#Question id: 2888

#Unit 2. Cellular Organization

Repressive complexes have been discovered that are composed of multiple repressing proteins bound to RNAs many kilobases in length that do not contain long open reading frames and are consequently called long noncoding RNAs or lncRNAs. Which of the following statements is correct regarding the regulation of these lncRNAs?