T-cell surface receptors for antigen partly recognize:

TLS Online TPP Program

#Question id: 4182

#SCPH28 | Zoology

If the anticodon on tRNA is GTC (tyrosine)(5ʹ → 3ʹ), the sequence of the 5ʹ → 3ʹ template strand of the gene in DNA that specifies this amino acid is

TLS Online TPP Program

#Question id: 12028

#SCPH28 | Zoology

Coprophagy is important for the nutritional balance of ________.

TLS Online TPP Program

#Question id: 4161

#SCPH06 I Botany

The link between an activated amino acid and tRNA is an __ bond between the __ of the amino acid and a hydroxyl group of the tRNA.

TLS Online TPP Program

#Question id: 5093

#SCPH28 | Zoology

Which of the following is a result of gastrulation in animals?

I) The archenteron is formed.

II) The body axes are established.

III) The germ layers are formed.

TLS Online TPP Program

#Question id: 13059

#SCPH06 I Botany

Precision will be reduced, but yield will be increased

Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.

Efficiency during ligation of blunt ended insert and vector cannot be cannot be enhanced by means of…..