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TLS Online TPP Program

#Question id: 1116

What is a primary function of transcription factors?

#Unit 4. Cell Communication and Cell Signaling

  1. They regulate the synthesis of DNA in response to a signal.

  2. They convert ATP into cAMP.

  3. They control gene expression.

  4. They regulate the release of calcium from the endoplasmic reticulum.

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TLS Online TPP Program

#Question id: 130

#Unit 1. Structure and Function of Biomolecules

An amino acid with two chiral carbon atoms
TLS Online TPP Program

#Question id: 131

#Unit 1. Structure and Function of Biomolecules

The RS system of nomenclature describes
TLS Online TPP Program

#Question id: 132

#Unit 1. Structure and Function of Biomolecules

Proline is distinct among the 20 commonly found amino acids because
TLS Online TPP Program

#Question id: 133

#Unit 1. Structure and Function of Biomolecules

Tyrosine and tryptophan are less hydrophobic than phenylalanine because
TLS Online TPP Program

#Question id: 134

#Unit 1. Structure and Function of Biomolecules

Ultraviolet (UV) light can be used to estimate protein solution concentrations because
TLS Online TPP Program

#Question id: 135

#Unit 1. Structure and Function of Biomolecules

 Concentrations of some proteins cannot be estimated by UV spectrophotometry because they are