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TLS Online TPP Program

#Question id: 2336

Which of the following exhibit the 9 + 2 structure of microtubules?        

#SCPH06 I Botany

  1. flagella

  2. cilia, basal body

  3. sensory hairs in the human ear

  4. all of the above

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TLS Online TPP Program

#Question id: 5544

#I Life Science/ Life Sciences Group – I-V

Which embryonic membrane forms the commonly of the placenta?
TLS Online TPP Program

#Question id: 12904

#SCPH28 | Zoology

Match the following:
1. Southern Blotting                               i. Melting temperature of DNA strand
2. DNA microchips                                   ii.oligonucleotide matching to DNA sample
3. ASO-PCR                                                 iii.DNA hybridization to oligo arrays
4. DGGE                                                        iv. labeled probe hybridization to DNA  
TLS Online TPP Program

#Question id: 3681

#SCPH01 Biochemistry

 A mutated E. coli cell carries out and completes DNA replication, but the lagging strands are found to contain more errors than normal. These errors are not found evenly distributed throughout the lagging strands, but are found in clusters. Which enzymatic activity is missing from this cell?
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#Question id: 18389

#SCPH28 | Zoology

How the degradation of alkanes and aromatic hydrocarbons generally occurs.
1. Oxygenase enzyme
2. β-oxidation to yield acetyl CoA
3. Hydrogenation reaction
4. Carboxylation
Which of the following are correct?
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#Question id: 361

#SCPH05 I Biotechnology

Calculate the percentage of histidine that has its imidazole side chain protonated at pH 7.3. The pKa values for histidine are pK1 = 1.8, pK2 (imidazole) = 6.0, and pK3 = 9.2.