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#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.)

#SCPH06 I Botany

  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: 6970

#SCPH06 I Botany

Neural crest cells will become:
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#Question id: 341

#SCPH06 I Botany

 Which force can stabilize a DNA double-helix?
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#Question id: 4342

#SCPH05 I Biotechnology

Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the operator to the far end of the operon, past the transacetylase (lacA) gene, which of the following processes would likely occur when the cell is exposed to lactose?
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#Question id: 2316

#SCPH28 | Zoology

Where are lysosomal enzymes stored in the cell?
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#Question id: 11960

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

Mechanical digestion, the process of breaking down large chunks of food into smaller pieces, is important because smaller pieces of food ________.