TLS Online TPP Program

#Question id: 824


why comparisons of the X-ray structures of hyperthermophilic enzymes with their mesophilic counterparts have failed to reveal any striking differences between them?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Covalent interactions almost same in thermophiles and mesophiles

  2. an increased size of the protein’s hydrophobic core

  3. Noncovalent interactions almost same in thermophiles and mesophiles

  4. Due to reduced surface-to-volume ratio

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TLS Online TPP Program

#Question id: 3498

#Unit 11. Evolution and Behavior

Assuming 5 offspring of each female, A Female lion with a well-nourished cub gains inclusive fitness by nursing a starving cub of a full sister by 5% loss to herself. What would be value of be benefit in percent (all offspring of recipient female die in case of no nursing)

TLS Online TPP Program

#Question id: 3497

#Unit 11. Evolution and Behavior

Which of the following is correct statement?

a. Sexual selection should operate more powerfully in polygamous than in monogamous species

b. Polygynous species should have stronger sexual dimorphism than in monogamous species

c. Male competition or male choice favors adaptations to polygynous mating in species

TLS Online TPP Program

#Question id: 3496

#Unit 11. Evolution and Behavior

Which of following favor adaptations for polygynous mating in species?

a. Male competition

b. Female competition

c. Male choice

d. Female choice

TLS Online TPP Program

#Question id: 3495

#Unit 11. Evolution and Behavior

Which one of the following statements is incorrect?

TLS Online TPP Program

#Question id: 3494

#Unit 11. Evolution and Behavior

Which of the following is a disadvantage of group living for many species?

a. Competition between individuals for resources is increased

b. It can reduce predator success

c. It can reduce reproductive success

d. It increased transmission of parasites and other diseases

TLS Online TPP Program

#Question id: 3493

#Unit 11. Evolution and Behavior

Which of the following is incorrect?