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TLS Online TPP Program

#Question id: 1084

Which observation suggested to Sutherland the involvement of a second messenger in epinephrine's effect on liver cells?

#XL - Q Biochemistry

  1. Receptor studies indicated that epinephrine was a ligand.

  2. Glycogen breakdown was observed only when epinephrine was administered to intact cells.

  3. Glycogen breakdown was observed when epinephrine and glycogen phosphorylase were combined in a cell-free system.

  4. Epinephrine was known to have different effects on many types of cells.

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TLS Online TPP Program

#Question id: 28143

#XL - U Food Technology

In most fruit juices the major portion of total soluble solids is consists of
TLS Online TPP Program

#Question id: 6944

#XL - T Zoology

Which would lead to a dorsalized embryo? (Recall that genes in Drosophila are named for their mutant phenotype.
TLS Online TPP Program

#Question id: 11168

#XL - Q Biochemistry

Which of the following membrane protein do not bind with lipid and, once purified, behave like water-soluble proteins?
TLS Online TPP Program

#Question id: 752

#XL - Q Biochemistry

The A260/A280 ratio of a double-stranded DNA sample can be used to assess its purity. The value for the pure DNA is ----------------
TLS Online TPP Program

#Question id: 19938

#XL - P Chemistry

The number of electrons that can be accommodated in dxy orbital is