TLS Online TPP Program

#Question id: 31400


During each month of the female sexual cycle, there is a cyclical increase and decrease of FSH and LH, as shown in the figure. Which of the following statement is incorrect regarding uterine cycle?

#Unit 7. System Physiology – Animal
  1. The endometrium increases rapidly in thickness from the 5th to the 14th days of the menstrual cycle.
  2. After 14th days, the endometrium becomes more highly vascularized and slightly edematous under the influence of estrogen and progesterone from the corpus albicans.
  3. Late in the luteal phase, the endometrium, like the anterior pituitary, produces prolactin.
  4. When the corpus luteum regresses, hormonal support for the endometrium is withdrawn about 4 days before the next menses.
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TLS Online TPP Program

#Question id: 13063

#Unit 13. Methods in Biology

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.
Which of the statement is worng? Aminopetrin………s

TLS Online TPP Program

#Question id: 13064

#Unit 13. Methods in Biology

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.
Which of the following techniques doesn’t involve use of a secondary antibody?

TLS Online TPP Program

#Question id: 13065

#Unit 13. Methods in Biology

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.
Agglutination of antigens by utilising specific antibodies can only occur, if

TLS Online TPP Program

#Question id: 13066

#Unit 13. Methods in Biology

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.
Which of the following is a codominant marker?

TLS Online TPP Program

#Question id: 13067

#Unit 13. Methods in Biology

The first immunoassay formats described were methods based on the ____ reaction, which is characterised either by gel formation in a liquid phase or as an opaque band in an agar plate assay.

TLS Online TPP Program

#Question id: 13068

#Unit 13. Methods in Biology

Coating antibody; which actively traps antigen