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TLS Online TPP Program

#Question id: 4129

Which of the following statements about the tRNA that normally accepts phenylalanine is false?  (mRNA codons for phenylalanine are UUU and UUC.)

#Section 3: Genetics, Cellular and Molecular Biology

  1. It interacts specificially with the Phe synthetase.

  2. It will accept only the amino acid phenylalanine.

  3. Its molecular weight is about 25,000.

  4. The tRNA must contain the sequence UUU.

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TLS Online TPP Program

#Question id: 1674

#Section 2: General Biology

Which of the following statements is TRUE of receptor editing?
TLS Online TPP Program

#Question id: 1675

#Section 2: General Biology

Somatic hypermutation of V genes:
TLS Online TPP Program

#Question id: 1676

#Section 2: General Biology

NK cells lack receptors with:
TLS Online TPP Program

#Question id: 1678

#Section 2: General Biology

What does the MHC class I heavy chain consists of?
TLS Online TPP Program

#Question id: 1679

#Section 2: General Biology

What is the molecular weight of MHC class II β chain?
TLS Online TPP Program

#Question id: 1680

#Section 2: General Biology

Where are the MHC class II region genes in the mouse located?