Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 41321
TLS Online TPP Program

#Question id: 4128

Which of the following statements about tRNA molecules is false?

#SCPH05 I Biotechnology

  1. A, C, G, and U are the only bases present in the molecule.

  2. Although composed of a single strand of RNA, each molecule contains several short, double-helical regions.

  3. Any given tRNA will accept only one specific amino acid.

  4. The amino acid attachment is always to an A nucleotide at the 3' end of the molecule.

More Questions
TLS Online TPP Program

#Question id: 17280

#SCPH01 Biochemistry

During DNA isolation, phenol / chloroform extraction is performed to remove
TLS Online TPP Program

#Question id: 12685

#SCPH01 Biochemistry

The polarities of the two strands of the molecule are in opposite direction and thus DNA is described as ________
TLS Online TPP Program

#Question id: 15142

#SCPH01 Biochemistry

Dot matrix analysis of the amino acid sequences of lambda phage cI (horizontal sequence) and phage P22 c2 (vertical sequence) repressors is shown below. Which one of the following is correct?
TLS Online TPP Program

#Question id: 1539

#SCPH01 Biochemistry

Regulatory T cell (TREG) have identified by the presence of
TLS Online TPP Program

#Question id: 14346

#SCPH05 I Biotechnology

in sterilization, del factor increases as the final number of cells