TLS Online TPP Program

#Question id: 4952


Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it?

#Unit 11. Evolution and Behavior
  1. How can amino acids, simple sugars, and nucleotides be synthesized abiotically?

  2. How can RNA molecules catalyze reactions?

  3. How did RNA sequences come to carry the code for amino acid sequences?

  4. How could polymers involving lipids and/or proteins form membranes in aqueous environments?

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TLS Online TPP Program

#Question id: 19698

#Unit 13. Methods in Biology

What is the configuration of limb lead III during ECG recording?

TLS Online TPP Program

#Question id: 19699

#Unit 13. Methods in Biology

What is Einthoven’s Law?

TLS Online TPP Program

#Question id: 19700

#Unit 13. Methods in Biology

Different leads are used to record ECG of humans, these leads can be either bipolar or unipolar. Which one of the following is NOT unipolar leads?

TLS Online TPP Program

#Question id: 19701

#Unit 13. Methods in Biology

Choose correct statement about Electrocardiogram Augmented Limb Leads.
a. In this type of limb lead system, two of the limbs are connected through the positive terminal of the electrocardiograph, and the third limb is connected to the negative terminal. 
b. In this type of limb lead system, two of the limbs are connected through the negative terminal of the electrocardiograph, and the third limb is connected to the positive terminal. 
c. When the positive terminal is on the right arm, the lead is known as the aVR lead; when on the left arm, it is known as the aVL lead; and when on the left leg, it is known as the aVF lead.
d. When the negative terminal is on the right arm, the lead is known as the aVR lead; when on the left arm, it is known as the aVL lead; and when on the left leg, it is known as the aVF lead.
Which of the following combination is correct?

TLS Online TPP Program

#Question id: 19702

#Unit 13. Methods in Biology

What is aVL in augmented unipolar limb lead?

TLS Online TPP Program

#Question id: 19703

#Unit 13. Methods in Biology

What is aVR in augmented unipolar limb lead?