Q. Copies of genes that arrive in a particular genome by horizontal gene transfer are known as (A) analogs               (B) homologs           (C) ohnologs           (D) xenologs Ans: xenologs

Q. In which of the following mating systems is sperm competition likely to evolve? A. Monoandry B. Monogamy C. Polyandry D. Polygyny Ans: Polyandry

Q. For a species, assuming a relatively short time scale and no evolution, increased interspecific competition will result in a (A) larger fundamental niche                    (B) larger realized niche (C) smaller fundamental niche                  (D) smaller realized niche Ans: smaller ...

Q. Which of the following can be used to test differences between mean tree heights in a tropical versus a temperate forest? A. Binomial test B. Linear regression C. Pearson’s correlation D. Student’s t-test Ans: Student’s t-test

Q. A plant species found in India produces flowers that are white, fragrant, and tubular. Which of the following is the most likely pollinating agent? (A) Hummingbirds                                      (B) Lorises (C) Moths                                                     (D) Wind ...

Q. The value of the resting membrane potential of a typical neuron is closest to the equilibrium potential of which of the following ions? (A) Ca++                     (B) ...

Q. A non-venomous, non-toxic species of snake is brightly coloured and closely resembles a venomous snake species in the same habitat. This is most likely a case of A. aggressive mimicry B. Batesian mimicry C. masquerade D. Müllerian mimicry Ans: Batesian mimicry

Q. Male frogs display to females by producing loud acoustic signals. The use of these signals by bats to locate frogs and prey upon them is an example of A. aposematism B. deception C. eavesdropping D. mimicry Ans: eavesdropping

Q. Forager bees communicate the distance of a food source using a waggle dance upon return to the hive. It is observed that the number of waggles of a dance increases linearly with the distance to the food source. This tells us that the A. number of waggles and distance to food source is ...

Q. If both of your ears were located next to each other in the middle of your face, you would have difficulty in resolving the A. direction of a sound B. duration of a sound C. loudness of a sound D. pitch of a sound Ans: direction of a sound