TLS Online TPP Program

#Question id: 4126


Which one of the following is true about the genetic code?

#SCPH06 I Botany
  1. All codons recognized by a given tRNA encode different amino acids.

  2. It is absolutely identical in all living things.

  3. Several different codons may encode the same amino acid.

  4. The base in the middle position of the tRNA anticodon sometimes permits “wobble” base pairing with 2 or 3 different codons.

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TLS Online TPP Program

#Question id: 18613

#SCPH06 I Botany

The size of a PCR product is mainly determined 

TLS Online TPP Program

#Question id: 18614

#SCPH01 Biochemistry

The primer length affects the efficiency rate of PCR, this rate decreases as the primer length

TLS Online TPP Program

#Question id: 18614

#SCPH06 I Botany

The primer length affects the efficiency rate of PCR, this rate decreases as the primer length

TLS Online TPP Program

#Question id: 18615

#SCPH01 Biochemistry

PCR efficiency is influenced by several factors, the efficiency declines due to
a) efficiency of amplification declines with an increase in the length of the target sequence.
b) Efficiency of PCR is affected by primer length; it declines if the primers used for PCR arc too long.
c) a temperature higher than the ideal annealing temperature reduces PCR efficiency.
d)  primers used for PCR have complementary regions, dimers will be formed, and PCR efficiency will decline.

TLS Online TPP Program

#Question id: 18615

#SCPH06 I Botany

PCR efficiency is influenced by several factors, the efficiency declines due to
a) efficiency of amplification declines with an increase in the length of the target sequence.
b) Efficiency of PCR is affected by primer length; it declines if the primers used for PCR arc too long.
c) a temperature higher than the ideal annealing temperature reduces PCR efficiency.
d)  primers used for PCR have complementary regions, dimers will be formed, and PCR efficiency will decline.

TLS Online TPP Program

#Question id: 18616

#SCPH01 Biochemistry

In a PCR higher annealing temperature along with7-dcaza guanosine triphosphate (7-deaza OTP) used in place of GTP this indicate