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TLS Online TPP Program

#Question id: 7137

Which of the following correctly describes the sequence of events by which the position of limbs along the antero-posterior axis of vertebrates is specified?

#Unit 5. Developmental Biology
  1. Hox gene expression in the mesoderm activates Wnt signaling, which turns on FGF expression and formation of the limb bud.
  2. Wnt signaling activates Hox gene expression, which turns on FGF expression and formation of the limb bud.
  3. FGF expression in the mesoderm activates Wnt signaling, which turns on Hox gene expression and formation of the limb bud.
  4. Hox gene expression in the mesoderm activates FGF signaling, which turns on Wnt expression and formation of the limb bud.
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TLS Online TPP Program

#Question id: 5333

#Unit 8. Inheritance Biology

Phenylketonuria a metabolic disease in human is caused by recessive allele k. if two heterozygous carriers of allele marry and have three children, what is the chance that all children will be affected?
TLS Online TPP Program

#Question id: 125

#Unit 1. Molecules and their Interaction Relevant to Biology

Regions on cell membranes called lipid rafts form because
TLS Online TPP Program

#Question id: 11689

#Unit 7. System Physiology – Animal

When do progesterone levels rise to their highest point during the female hormonal cycle?
TLS Online TPP Program

#Question id: 16112

#Unit 7. System Physiology – Animal

Which of the following is not a heat generating mechanism?
TLS Online TPP Program

#Question id: 12213

#Unit 7. System Physiology – Animal

The gastric phase of gastric secretion accounts for about 60% of the acid response to a meal. Which of the following can virtually eliminate the secretion of acid during the gastric phase?