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TLS Online TPP Program

#Question id: 16968

Parallel evolution is a term that has been used to describe cases in which independent evolution of a character state is thought to have similar genetic and developmental bases, especially in closely related species. Which statements is true for

#Unit 11. Evolution and Behavior
  1. Evolutionary reversals constitute a return from a derived character
  2. Distinction between parallel evolution and convergent evolution may be very meaningful because, as we will see, the same gene often contributes to similar evolutionary changes in related organisms.
  3. Distinction between parallel evolution and convergent evolution may not be very meaningful because, as we will see, the same gene often contributes to similar evolutionary changes in distantly related organisms.
  4. Mutational change in a specific gene, Pitx1, is the basis of independent loss of the pelvic girdle and fins in many freshwater populations of a small fish, the three spined stickleback stickleback
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TLS Online TPP Program

#Question id: 10476

#Unit 1. Molecules and their Interaction Relevant to Biology

Following statements are regarding to gangliosides.

A. They are ceramides with attached oligosaccharides that include at least one sialic acid residue.

B. They are ceramides with attached oligosaccharides that include at least one phasphatidic acid residue.

C. Sialic acid gives gangliosides the negative charge at pH 7 that distinguishes them from globosides.

D. Gangliosides are primarily components of cell-surface membranes and constitute a significant fraction (6%) of brain lipids.

Which of the following combination is correct?
TLS Online TPP Program

#Question id: 12255

#Unit 10. Ecological Principles

The following three panels show the change in population size over time for two species when they are found alone and when they are found together. Which kind of interaction best describes the relationship between the two species?
TLS Online TPP Program

#Question id: 23612

#General Aptitude

If M × N means M is the daughter of N ; M + N means M is the father of N ; M %N means M is the mother of N and M −N means M is the brother of N the P %Q + R −T × K indicates which relation of P to K?
TLS Online TPP Program

#Question id: 23358

#General Aptitude

Which of the following is a best method to control noise in the class room situation?
TLS Online TPP Program

#Question id: 9595

#Unit 6. System Physiology – Plant

The process is that the absorbed photon causes an electron rearrangement in the reaction centre chlorophyll, followed by an electron transfer process in which part of the energy in the photon is captured in the form of