TLS Online TPP Program

#Question id: 1287


Biological roles of proteoglycans and hyaluronan include all of the following, except:

#Unit 4. Cell Communication and Cell Signaling
  1. maintenance of porosity for the diffusion of small molecules between cells and tissues.

  2. presentation of growth factors to cells.

  3. resistance to compression.

  4. storage sites for extracellular energy reserves.

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TLS Online TPP Program

#Question id: 28079

#Unit 6. System Physiology – Plant

In molecules, two types of excited states can exist singlet and triplet  
(a) The singlet state is relatively long‐lived than triplet and have parallel spin
(b) The singlet state is relatively short‐lived than triplet and have antiparallel spin
(c) The triplet state is relatively long‐lived than singlet and have two parallel spin
(d) The triplet state is relatively long‐lived than singlet and have two anti-parallel spin
Which of the following is correct 

TLS Online TPP Program

#Question id: 15816

#Unit 8. Inheritance Biology

You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium.

Which mutations do you know to be in the same gene?

TLS Online TPP Program

#Question id: 3480

#Unit 11. Evolution and Behavior

Which of the following statements about learning and behavior is correct?

A) Operant conditioning involves associating a behavior with a reward or punishment.

B) Associative learning involves linking one stimulus with another.

C) Behavior can be modified by learning, but some apparent learning is due to maturation.

D) Imprinting is a learned behavior with an innate component acquired during a sensitive period.

TLS Online TPP Program

#Question id: 28499

#Unit 5. Developmental Biology

 In case of forelimb, which Hox gene specify the stylopod?

TLS Online TPP Program

#Question id: 5042

#Unit 5. Developmental Biology

Which one of the following set of Yamanaka factors can be used to regained the pluripotency of somatic cells in mammals?