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TLS Online TPP Program

#Question id: 27631

Interactions between amino acid residues at the ends of the helical segment and the electric dipole inherent to the  helix so which of the following representing the actual dipole moment along the peptide bond atoms C=O– N-H

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. O has net dipole moment +4.2, and H has net dipole moment of +0.20
  2. O has net dipole moment -0.42, and H has net dipole moment of +0.20
  3. O has net dipole moment -0.20, and H has net dipole moment of +0.20

  4. O has net dipole moment -0.42, and H has net dipole moment of -0.20

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TLS Online TPP Program

#Question id: 3263

#Unit 11. Evolution and Behavior

From an evolutionary point of view, plant tendrils derived from leaves and those derived from stems are examples of
TLS Online TPP Program

#Question id: 3264

#Unit 11. Evolution and Behavior

Which of the following is (are) true of natural selection?
TLS Online TPP Program

#Question id: 3265

#Unit 11. Evolution and Behavior

If the curve shifts to the left or to the right, there is no gene flow, and the population size consequently increases over successive generations, then which of these is (are) probably occurring?
TLS Online TPP Program

#Question id: 3266

#Unit 11. Evolution and Behavior

One species mates at the season when daylight is increasing from 13 hours to 13 hours, 15 minutes; another species mates at the season when daylight is increasing from 14 hours to 14 hours, 15 minutes. The isolating mechanism is
TLS Online TPP Program

#Question id: 3267

#Unit 11. Evolution and Behavior

In a typical Mendelian population, individuals carrying gene ‘a’ in homozygous condition suffer from phenylketonurea. Those with A in homozygous condition are normal. Others, who are heterozygotic with Aa, are carriers. If the frequency of ‘a’ in a population is 0.20, what is the percentage of normal individual in the population?
TLS Online TPP Program

#Question id: 3268

#Unit 11. Evolution and Behavior

A population of insects is in Hardy-Weinberg equilibrium for a gene with alleles A = orange and a = yellow eyes. There are 91% orange and 9% yellow individuals in the population. If the fitness of the yellow phenotype suddenly drops to zero, what will be the allele frequency in the next generation?