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TLS Online TPP Program

#Question id: 15278

A DNA sample having mass 1 ng undergoes PCR, the eluted DNA is weighted about 1 microgram, the minimum number of cycles required

#SCPH01 Biochemistry
  1.  about 10 cycles
  2. about 25 cycles
  3. about 20 cycles
  4. about 5 cycles
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TLS Online TPP Program

#Question id: 5561

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

In sea urchins, the "fast block" and the longer lasting "slow block" to polyspermy, respectively, are ________.
TLS Online TPP Program

#Question id: 7295

#SCPH06 I Botany

If a long-day plant has a critical night length of 9 hours, which 24-hour cycle would prevent flowering? (SS)
TLS Online TPP Program

#Question id: 10985

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

What is the membrane potential (threshold level) at which the S-A node discharges?
TLS Online TPP Program

#Question id: 370

#SCPH05 I Biotechnology

Which of the following statements is true about buffer solutions?
TLS Online TPP Program

#Question id: 1789

#SCPH05 I Biotechnology

What is negative feedback on adaptive B-cell responses mediated by